{"id":62184,"date":"2022-01-29T11:58:39","date_gmt":"2022-01-29T14:58:39","guid":{"rendered":"https:\/\/vestibulares.estrategia.com\/portal\/?p=62184"},"modified":"2024-09-25T13:43:03","modified_gmt":"2024-09-25T16:43:03","slug":"diagrama-de-fases","status":"publish","type":"post","link":"https:\/\/vestibulares.estrategia.com\/portal\/materias\/fisica\/diagrama-de-fases\/","title":{"rendered":"Diagrama de Fases: o que \u00e9 e como interpretar"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Voc&ecirc; sabia que &eacute; poss&iacute;vel encontrar o <span id=\"urn:enhancement-864006be-e0d0-4561-8f68-46a8afc5a789\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/estados-fisicos\">estado<\/span> <span id=\"urn:enhancement-ff958627-6367-4385-a799-0d58a48a6d02\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/fisico\">f&iacute;sico<\/span> de uma <span id=\"urn:enhancement-cd1a118a-566d-446c-9758-205011fab761\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/substancia\">subst&acirc;ncia<\/span> apenas com os valores de temperatura e <span id=\"urn:enhancement-f18ae239-b15d-4afa-8de6-4c9ef4094dc6\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/pressao\">press&atilde;o<\/span>? Para isso, &eacute; importante lan&ccedil;ar m&atilde;o de uma ferramenta <span id=\"urn:enhancement-9f89a07b-ee69-42af-b4cf-a443f607056a\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/fisico\">f&iacute;sico<\/span>&ndash;<span id=\"urn:enhancement-3fc8de25-46e5-4a6f-b191-d9dcf080d9cb\" class=\"textannotation disambiguated wl-creative-work\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/matematica\">matem&aacute;tica<\/span> chamada <strong><span id=\"urn:enhancement-8022e7f8-cab4-453f-9ab9-0fea2c187059\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/diagrama-de-fases\">diagrama de fases<\/span><\/strong>. Continue lendo para conhecer melhor!<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">Navegue pelo conte\u00fado<\/p>\n<\/div><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/vestibulares.estrategia.com\/portal\/materias\/fisica\/diagrama-de-fases\/#O-que-e-o-diagrama-de-fases\" >O que &eacute; o diagrama de fases?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/vestibulares.estrategia.com\/portal\/materias\/fisica\/diagrama-de-fases\/#Interpretacoes-do-diagrama-de-fases\" >Interpreta&ccedil;&otilde;es do diagrama de fases<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/vestibulares.estrategia.com\/portal\/materias\/fisica\/diagrama-de-fases\/#Mudancas-de-estado-fisico-no-diagrama-de-fases\" >Mudan&ccedil;as de estado f&iacute;sico no diagrama de fases<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/vestibulares.estrategia.com\/portal\/materias\/fisica\/diagrama-de-fases\/#Como-o-diagrama-de-fases-cai-no-vestibular\" >Como o diagrama de fases cai no vestibular?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/vestibulares.estrategia.com\/portal\/materias\/fisica\/diagrama-de-fases\/#Aprenda-mais-sobre-fisica-com-a-Coruja\" >Aprenda mais sobre f&iacute;sica com a Coruja!<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/vestibulares.estrategia.com\/portal\/materias\/fisica\/diagrama-de-fases\/#Veja-tambem\" >Veja tamb&eacute;m:<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" id=\"h-o-que-e-o-diagrama-de-fases\"><span class=\"ez-toc-section\" id=\"O-que-e-o-diagrama-de-fases\"><\/span>O que &eacute; o diagrama de fases?<span class=\"ez-toc-section-end\"><\/span><\/h2><p class=\"wp-block-paragraph\">O <span id=\"urn:enhancement-7ca9bd3b-0862-498b-9660-113211d7d353\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/diagrama-de-fases\">diagrama de fases<\/span> &eacute; um <span id=\"urn:enhancement-117dc572-4dc3-4952-b0bd-3de60e9b3b09\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/graficos\">gr&aacute;fico<\/span> que relaciona a <strong><span id=\"urn:enhancement-565db18f-fcab-4b87-bca5-50d3228b9d02\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/pressao\">press&atilde;o<\/span> <\/strong>e a <strong>temperatura <\/strong>para determinar qual o <span id=\"urn:enhancement-0b1243ae-2059-4c46-ba5f-723bdb7bb249\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/estados-fisicos\">estado<\/span> <span id=\"urn:enhancement-b8d95dec-f7c2-4080-8ea5-8fe5a32dd0e3\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/fisico\">f&iacute;sico<\/span> de uma <span id=\"urn:enhancement-6271a143-f51d-46b8-b365-ac3f94282451\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/substancia\">subst&acirc;ncia<\/span>.<\/p><p class=\"wp-block-paragraph\">Nesse caso, com um<strong> ponto cartesiano <\/strong>A(x,y) pode-se afirmar qual se o composto est&aacute; <span id=\"urn:enhancement-be6a0266-37f2-4792-a9e8-352186b22fea\" class=\"textannotation disambiguated wl-creative-work\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/solido\">s&oacute;lido<\/span>, <span id=\"urn:enhancement-489da190-6ca1-4f8f-8fe8-f11c5df29516\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/liquido\">l&iacute;quido<\/span> ou <span id=\"urn:enhancement-2cac11e9-578b-4f98-86be-db64f7e499c2\" class=\"textannotation disambiguated wl-creative-work\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/gases\">gasoso<\/span>. Ou, de maneira an&aacute;loga, ao encontrar um <span id=\"urn:enhancement-d112530a-dcbf-44d3-81db-f9f4516b18c7\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/material\">material<\/span> em determinado <span id=\"urn:enhancement-62b530ed-14b9-44af-8ba2-2589803a594c\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/estados-fisicos\">estado<\/span> <span id=\"urn:enhancement-dc0a8ed0-90de-42e3-910d-9ead3661d8b8\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/fisico\">f&iacute;sico<\/span>, encontra-se o intervalo de coordenadas de <span id=\"urn:enhancement-9e07c06e-a0cb-4f68-a1fe-8ba6534da921\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/pressao\">press&atilde;o<\/span> e temperatura &agrave;s quais aquele corpo est&aacute; sujeito.<\/p><div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh3.googleusercontent.com\/WhLRPiyshu_0uBhh41D0n8f4XjEr6T7iieV5SkmobNq0xbPpLo2N2D8dLWEuMyQmFtzXFnRYR1UCxVqCXpGn2STiodmNgcPh-fJKoGNxH0zoGCQoFpCMfM4IDm5rVLRE4ii8ypgo\" alt=\"diagrama de fases da &aacute;gua\"><\/figure>\n<\/div><p class=\"wp-block-paragraph\">No <span id=\"urn:enhancement-89362bb8-0147-4a89-96b0-8f75a5d5c2f9\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/graficos\">gr&aacute;fico<\/span> acima, que representa o <span id=\"urn:enhancement-5d77f859-ab75-4a99-a1d0-1c1b85233186\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/diagrama-de-fases\">diagrama de fases<\/span> da &aacute;gua, observam-se tr&ecirc;s distintas regi&otilde;es:&nbsp;<\/p><ul class=\"wp-block-list\">\n<li>Na parte superior esquerda, as rela&ccedil;&otilde;es de temperatura e press&atilde;o s&atilde;o tais que a &aacute;gua encontra-se <strong>congelada<\/strong>;<\/li>\n\n\n\n<li>Na por&ccedil;&atilde;o superior direita, por sua vez, a intera&ccedil;&atilde;o de press&atilde;o e temperatura permite que a subst&acirc;ncia esteja em estado <strong>l&iacute;quido<\/strong>; e<\/li>\n\n\n\n<li>Por fim, na por&ccedil;&atilde;o inferior, o composto encontra-se no estado de <strong>vapor<\/strong>.<\/li>\n<\/ul><h2 class=\"wp-block-heading\" id=\"h-interpretacoes-do-diagrama-de-fases\"><span class=\"ez-toc-section\" id=\"Interpretacoes-do-diagrama-de-fases\"><\/span>Interpreta&ccedil;&otilde;es do diagrama de fases<span class=\"ez-toc-section-end\"><\/span><\/h2><p class=\"wp-block-paragraph\">As curvas do <span id=\"urn:enhancement-a1d69e3f-ca7e-4de8-a6c8-c4098ad7e0a7\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/diagrama-de-fases\">diagrama de fases<\/span>, al&eacute;m de <span id=\"urn:enhancement-12e49b3f-5dec-4018-bdee-f1efb846ac81\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/divisao-celular\">dividir<\/span> as diferentes regi&otilde;es do <span id=\"urn:enhancement-38d1f7db-3ee7-4846-be41-a6e6a4b8f498\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/graficos\">gr&aacute;fico<\/span>, tamb&eacute;m definem <span id=\"urn:enhancement-ba8782ad-114f-40c1-b7e2-a4e09151300f\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/estados-fisicos\">estados f&iacute;sicos<\/span> duplos para a <span id=\"urn:enhancement-e7dbe338-80e3-433a-a515-4604acfa1eb6\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/substancia\">subst&acirc;ncia<\/span>.<\/p><div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh5.googleusercontent.com\/AcIc5hEriW8ZcCT7RUwdzpRxm6eSChY0doBWXcLrI-o15AoJS7ntJPIzF0r4Jg-9a6tIRWHDDFFJ2LePFmehs8abSjtPkJiFPc6CU0Ig3AT6zRwwuxOyV12RL9GodjzCB2mYsio4\" alt=\"diagrama de fases da &aacute;gua - ponto triplo\"><\/figure>\n<\/div><ul class=\"wp-block-list\">\n<li>Em todos os pontos da linha amarela (<strong>curva de solidifica&ccedil;&atilde;o<\/strong>), por exemplo, a &aacute;gua encontra-se tanto no l&iacute;quida como s&oacute;lida &mdash; o que representa um estado de transi&ccedil;&atilde;o;<\/li>\n\n\n\n<li>Na linha azul, chamada de <strong>curva de condensa&ccedil;&atilde;o,<\/strong> situa&ccedil;&atilde;o semelhante acontece, agora com os estados l&iacute;quido e gasoso; e&nbsp;<\/li>\n\n\n\n<li>Na linha verde, conhecida como <strong>curva de ressublima&ccedil;&atilde;o<\/strong>, a concomit&acirc;ncia acontece com &aacute;gua gasosa e gelo.&nbsp;<\/li>\n<\/ul><h3 class=\"wp-block-heading\" id=\"h-ponto-triplo\">Ponto triplo<\/h3><p class=\"wp-block-paragraph\">Conforme as ideias que estamos discutindo at&eacute; agora, &eacute; poss&iacute;vel perceber que a exist&ecirc;ncia de duas configura&ccedil;&otilde;es f&iacute;sicas para a mesma <span id=\"urn:enhancement-cf555b89-b8a4-4d5b-a40e-7db9db21efd1\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/substancia\">subst&acirc;ncia<\/span> &eacute; real. No caso do ponto em que as linhas verde, amarela e azul se cruzam, temos o ponto triplo.<\/p><p class=\"wp-block-paragraph\">Embora n&atilde;o aconte&ccedil;a espontaneamente na natureza com facilidade, as condi&ccedil;&otilde;es corretas de temperatura e <span id=\"urn:enhancement-a4775e5f-d9dd-4ca0-89da-440dab5120c5\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/pressao\">press&atilde;o<\/span>, manipuladas em laborat&oacute;rio, permitem que a &aacute;gua esteja ao mesmo tempo s&oacute;lida, <span id=\"urn:enhancement-d95e88d8-7deb-4f77-b60a-93e7cb8edfc9\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/liquido\">l&iacute;quida<\/span> e gasosa, como voc&ecirc; pode observar na imagem abaixo:<\/p><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/vestibulares.estrategia.com\/portal\/wp-content\/uploads\/2022\/01\/image.gif\" alt=\"\" class=\"wp-image-62185\" srcset=\"https:\/\/vestibulares.estrategia.com\/portal\/wp-content\/uploads\/2022\/01\/image.gif 640w, https:\/\/vestibulares.estrategia.com\/portal\/wp-content\/uploads\/2022\/01\/image-300x169.webp 300w, https:\/\/vestibulares.estrategia.com\/portal\/wp-content\/uploads\/2022\/01\/image-380x214.webp 380w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><figcaption class=\"wp-element-caption\"><em>Imagem: Reprodu&ccedil;&atilde;o\/Wikimedia<\/em><\/figcaption><\/figure>\n<\/div><p class=\"wp-block-paragraph\">Enquanto a <strong>&aacute;gua <span id=\"urn:enhancement-5a663dd7-da5a-458d-8349-c402ef2bd0b3\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/liquido\">l&iacute;quida<\/span><\/strong> ferve, liberam-se bolhas de <strong>vapor<\/strong> e, ao mesmo tempo, flutuam pedras de gelo na superf&iacute;cie do fluido.<\/p><p class=\"wp-block-paragraph\">+ Veja tamb&eacute;m: <a href=\"https:\/\/vestibulares.estrategia.com\/portal\/fisica\/formulas-fisica-enem\/\" target=\"_blank\">F&oacute;rmulas de F&iacute;sica mais comuns do Enem e outros vestibulares<\/a><\/p><h2 class=\"wp-block-heading\" id=\"h-mudancas-de-estado-fisico-no-diagrama-de-fases\"><span class=\"ez-toc-section\" id=\"Mudancas-de-estado-fisico-no-diagrama-de-fases\"><\/span>Mudan&ccedil;as de estado f&iacute;sico no diagrama de fases<span class=\"ez-toc-section-end\"><\/span><\/h2><p class=\"wp-block-paragraph\">A forma como as <span id=\"urn:enhancement-b22ac84d-16d2-4fd0-a125-88b05371c0f3\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/substancia\">subst&acirc;ncias<\/span> alteram ou sofrem altera&ccedil;&atilde;o de suas caracter&iacute;sticas de temperatura e <span id=\"urn:enhancement-cb85daca-098a-48db-9e14-c2c6a35a5722\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/pressao\">press&atilde;o<\/span> influenciam diretamente no <strong><span id=\"urn:enhancement-7b33045f-e675-45cc-b132-44e597bced31\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/estados-fisicos\">estado<\/span> <span id=\"urn:enhancement-a366a9d0-8efa-49bd-86ef-d7e933b51ed7\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/fisico\">f&iacute;sico<\/span><\/strong>.<\/p><div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh4.googleusercontent.com\/BWo4IZCqRwHKKGdbp3k8-9jx9WXh17baDkpgKp8lOE7HXfJO5KiBgNJrgN4HpiZIUa538ahvut1TheMH7e4Di_65CBz0xYzxf-AjEpwqc3Y1k3miAZ9z_gLahRAHEJTx3_FhsRgy\" alt=\"diagrama de fases da &aacute;gua - mudan&ccedil;a de estado f&iacute;sico\"><\/figure>\n<\/div><p class=\"wp-block-paragraph\">Nas setas, podemos observar a mudan&ccedil;a de <span id=\"urn:enhancement-a5c4d99f-a63f-477c-9ef1-f71c91b9a4c6\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/estados-fisicos\">estado<\/span> <span id=\"urn:enhancement-8ece949c-4665-4b7a-ac24-83e785341a41\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/fisico\">f&iacute;sico<\/span>:<\/p><ul class=\"wp-block-list\">\n<li>A seta A indica que a subst&acirc;ncia teve um aumento de sua temperatura e alterou seu estado de s&oacute;lido para l&iacute;quido &mdash; <strong>liquefa&ccedil;&atilde;o<\/strong>;<\/li>\n\n\n\n<li>J&aacute; o aponte D demonstra que o composto l&iacute;quido tornou-se gasoso &mdash; <strong>vaporiza&ccedil;&atilde;o<\/strong>; e<\/li>\n\n\n\n<li>Assim como a seta E demonstra uma altera&ccedil;&atilde;o de gelo para &aacute;gua gasosa &mdash; <strong>sublima&ccedil;&atilde;o<\/strong>.<\/li>\n<\/ul><p class=\"wp-block-paragraph\">Na contram&atilde;o, os processos B, C e F resultam na mesma opera&ccedil;&atilde;o de maneira oposta:<\/p><ul class=\"wp-block-list\">\n<li>No caso de B, passa-se de l&iacute;quido para s&oacute;lido, por meio da <strong>solidifica&ccedil;&atilde;o<\/strong>;<\/li>\n\n\n\n<li>Em C, troca-se de gasoso para l&iacute;quido, com a <strong>condensa&ccedil;&atilde;o<\/strong>; e&nbsp;<\/li>\n\n\n\n<li>Em F, a subst&acirc;ncia gasosa torna-se s&oacute;lida, pela <strong>ressublima&ccedil;&atilde;o<\/strong>.<\/li>\n<\/ul><h3 class=\"wp-block-heading\" id=\"h-ponto-critico-e-estado-gasoso\">Ponto cr&iacute;tico e estado gasoso<\/h3><p class=\"wp-block-paragraph\">At&eacute; agora, observamos a &aacute;gua em <span id=\"urn:enhancement-5381c153-092e-4ec7-bbb1-c0c8fda866d7\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/estados-fisicos\">estado<\/span> <span id=\"urn:enhancement-3dc61c23-26e4-4971-a8a4-4194efe95416\" class=\"textannotation disambiguated wl-creative-work\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/gases\">gasoso<\/span> como vapor. Ou seja, pela <span id=\"urn:enhancement-efdf8628-dc55-46be-88d6-bec8b4f417f3\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/vaporizacao\">vaporiza&ccedil;&atilde;o<\/span> da <span id=\"urn:enhancement-9a83d7b6-9db0-4b0f-be75-6870617e1dd1\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/substancia\">subst&acirc;ncia<\/span>.&nbsp;<\/p><p class=\"wp-block-paragraph\">Por&eacute;m, sabemos que existe um ponto no <span id=\"urn:enhancement-63f1baaf-beb5-4253-8086-51976208b71f\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/diagrama-de-fases\">diagrama de fases<\/span> que permite que a &aacute;gua se torne um <span id=\"urn:enhancement-09fc10dd-fd2e-4a9a-adf5-7663c37a0153\" class=\"textannotation disambiguated wl-creative-work\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/gases\">g&aacute;s<\/span> uniforme &mdash; de forma que n&atilde;o &eacute; mais um vapor condens&aacute;vel como estamos acostumados a ver.&nbsp;<\/p><p class=\"wp-block-paragraph\">Esse ponto &eacute; chamado de <strong>ponto cr&iacute;tico<\/strong> e est&aacute; localizado no momento em que se finda a curva de condensa&ccedil;&atilde;o. A temperatura cr&iacute;tica t<sub>c <\/sub>=374&ordm;C e a <span id=\"urn:enhancement-125d878c-b19e-4142-906e-5bec6c97e786\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/pressao\">press&atilde;o<\/span> cr&iacute;tica p= 218 atm.<\/p><div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh6.googleusercontent.com\/dx-txgX8RMKbVyjck16cNrhQuM788hZSsqWQImwfB2gUM0EO_oxAKu09Y1BQwic3b09Eq9AAknAMNKX5TH4P8mKCfTFdKqeNhOfJqaO9jfc1IRpISU1RRmN517tt91kPvTmB2mLo\" alt=\"ponto cr&iacute;tico\"><\/figure>\n<\/div><h3 class=\"wp-block-heading\" id=\"h-aplicacoes-praticas-do-diagrama-de-fases\">Aplica&ccedil;&otilde;es pr&aacute;ticas do diagrama de fases<\/h3><p class=\"wp-block-paragraph\">Um bom exemplo de aplica&ccedil;&atilde;o cotidiana do <span id=\"urn:enhancement-b960415d-26e9-437e-ab9a-9d5c2793cb49\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/diagrama-de-fases\">diagrama de fases<\/span> s&atilde;o as <strong>panelas de <span id=\"urn:enhancement-5b84e186-0b06-486d-b985-89981a32c1ac\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/pressao\">press&atilde;o<\/span><\/strong>. Para alcan&ccedil;ar uma maior temperatura no cozimento, o que garante maior transfer&ecirc;ncia de <span id=\"urn:enhancement-bdb3f5ac-cffd-4e51-8f8b-101831ab967d\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/calor\">calor<\/span> para o alimento e menor tempo de preparo.<\/p><p class=\"wp-block-paragraph\">Para fonte de <span id=\"urn:enhancement-fcc3bc33-b8a7-4dcc-984a-ab7f2631f40c\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/calor\">calor<\/span> de pot&ecirc;ncia igual, o aumento da <span id=\"urn:enhancement-10c4e642-f05e-415c-abb4-98a945bdbe86\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/pressao\">press&atilde;o<\/span> favorece uma temperatura de ebuli&ccedil;&atilde;o maior para a &aacute;gua. Voc&ecirc; pode observar isso com o <span id=\"urn:enhancement-afdd55a3-88ea-4998-b2d4-b4cac2c57144\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/graficos\">gr&aacute;fico<\/span> abaixo, fornecido em um exerc&iacute;cio do <span id=\"urn:enhancement-673c1077-6bd9-49b1-a6e1-7121abb0e63c\" class=\"textannotation disambiguated wl-event\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/enem-64632\">Enem<\/span> de 1999:<\/p><div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh5.googleusercontent.com\/15Y8FMzL02OPXHJhHAG_e8joEEPDrta3AmNlEi4jfG1qlzKRqajvo5O7vjfvD--OOcVyEu9m0dR4aPd_4ZtX0AwSC9pO9IqkXbm0GDSFO8SeNjxqDEa30nKRjaeNPSkeJAhdBW4u\" alt=\"diagrama de fases da &aacute;gua\"><\/figure>\n<\/div><p class=\"wp-block-paragraph\">Note que para uma <span id=\"urn:enhancement-e6202a35-c035-44fe-8faf-a3b6babcbd11\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/pressao\">press&atilde;o<\/span> de 1 atm, a temperatura de ebuli&ccedil;&atilde;o da &aacute;gua ser&aacute; de 100&ordm;C. Por&eacute;m, se alterarmos somente a <span id=\"urn:enhancement-ae174ae0-c961-465c-8ded-7025554c91e3\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/pressao\">press&atilde;o<\/span> no interior do recipiente para 2 atm,&nbsp; por exemplo, observa-se que a temperatura de ebuli&ccedil;&atilde;o chega a aproximadamente 120&ordm; C &mdash; o que catalisa o processo de prepara&ccedil;&atilde;o dos alimentos.<\/p><figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"cs-embed cs-embed-responsive\"><iframe title=\"Revis&atilde;o de Qu&iacute;mica Geral para Vestibulares de 2&ordf; fase\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/zzOf6S7yIPw?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure><h2 class=\"wp-block-heading\" id=\"h-como-o-diagrama-de-fases-cai-no-vestibular\"><span class=\"ez-toc-section\" id=\"Como-o-diagrama-de-fases-cai-no-vestibular\"><\/span>Como o diagrama de fases cai no vestibular?<span class=\"ez-toc-section-end\"><\/span><\/h2><p class=\"wp-block-paragraph\">Agora que voc&ecirc; j&aacute; conhece as principais informa&ccedil;&otilde;es sobre <span id=\"urn:enhancement-d6210041-4260-4c66-975a-e2ba73fd0f7b\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/diagrama-de-fases\">diagrama de fases<\/span>, vamos resolver uma quest&atilde;o da <a href=\"https:\/\/vestibulares.estrategia.com\/portal\/vestibulares\/vestibular-unesp\/\" target=\"_blank\">Unesp <\/a>sobre o assunto passo a passo, facilitando a compreens&atilde;o:<\/p><p class=\"wp-block-paragraph\">A liofiliza&ccedil;&atilde;o &eacute; um processo de desidrata&ccedil;&atilde;o de alimentos que, al&eacute;m de evitar que seus nutrientes saiam junto com a &aacute;gua, diminui bastante sua <span id=\"urn:enhancement-03778e6a-33f4-497d-a8cd-12c1e716c283\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/massa\">massa<\/span> e seu <span id=\"urn:enhancement-129c3ead-5f6b-44df-b8a4-9523f65f4ca1\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/volume\">volume<\/span>, facilitando o armazenamento e o transporte. Alimentos liofilizados tamb&eacute;m t&ecirc;m seus prazos de validade aumentados, sem perder caracter&iacute;sticas como aroma e sabor.<\/p><p class=\"wp-block-paragraph\">O processo de liofiliza&ccedil;&atilde;o segue as seguintes etapas:<\/p><ol class=\"wp-block-list\">\n<li>O alimento &eacute; resfriado at&eacute; temperaturas abaixo de 0 &deg;C, para que a &aacute;gua contida nele seja solidificada.<\/li>\n\n\n\n<li>Em c&acirc;maras especiais, sob baix&iacute;ssima press&atilde;o (menores do que 0,006 atm), a temperatura do alimento &eacute; elevada, fazendo com que a &aacute;gua s&oacute;lida seja sublimada. Dessa forma, a &aacute;gua sai do alimento sem romper suas estruturas moleculares, evitando perdas de prote&iacute;nas e vitaminas.<br><br><\/li>\n<\/ol><div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh5.googleusercontent.com\/feuZg8vR8rhn6XxOFVDxAoyVtH8F-bpP-h1FXzzYdIA7jpPpSje0m2sIknyzG4JEL9kRbRSUwp7GAD-sulTbZc9zQDA1-2IdYrjubexb3GqZY7pRojc4q7IiH4OCXuRsGyaTNFJq\" alt=\"frutas liofizadas\"><\/figure>\n<\/div><p class=\"wp-block-paragraph\">O <span id=\"urn:enhancement-a00a2428-29ac-40de-8419-c98dc939e275\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/graficos\">gr&aacute;fico<\/span> mostra parte do <span id=\"urn:enhancement-aa5d9d09-0a62-463f-a418-848094512cb5\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/diagrama-de-fases\">diagrama de fases<\/span> da &aacute;gua e cinco processos de mudan&ccedil;a de fase, representados pelas setas numeradas de 1 a 5.<\/p><div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh4.googleusercontent.com\/H4ZFe4Cj_25whjYnj8IN2bqmSci4JJljr4yKmaUO3m-8c2pS6VT9PC2tpU6DkhdmIJHDGZhHs7VpUhkdTwTOQj_6M4hWzdihj_oDP1m_l4VIz2_hVG5d2HXZwJLTuGV7RoP6Bnss\" alt=\"diagrama de fases\"><\/figure>\n<\/div><p class=\"wp-block-paragraph\">A alternativa que melhor representa as etapas do processo de liofiliza&ccedil;&atilde;o, na ordem descrita, &eacute;<\/p><p class=\"wp-block-paragraph\">a) 4 e 1.<br>b) 2 e 1.<br>c) 2 e 3.<br>d) 1 e 3.<br>e) 5 e 3.<\/p><p class=\"wp-block-paragraph\">Na primeira etapa, a &aacute;gua <span id=\"urn:enhancement-14ca26b0-60f6-419a-80ca-379fb9b50f0c\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/liquido\">l&iacute;quida<\/span> sofre <span id=\"urn:enhancement-9707890c-48de-44a8-8245-15226f607429\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/solidificacao\">solidifica&ccedil;&atilde;o<\/span>, ou seja, sofre o processo marcado pela seta de n&uacute;mero 2.&nbsp;<\/p><p class=\"wp-block-paragraph\">No segundo momento do processo, o alimento est&aacute; sob uma &iacute;nfima <span id=\"urn:enhancement-135f7ec9-84dc-4e56-86cd-00560e8ff4a5\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/pressao\">press&atilde;o<\/span>: sua &aacute;gua sofre transforma&ccedil;&atilde;o do <span id=\"urn:enhancement-124499a4-ba0e-4044-a449-b6ff3f953263\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/estados-fisicos\">estado<\/span> <span id=\"urn:enhancement-77e9173e-4dbb-485f-bf7e-9d5296c6558a\" class=\"textannotation disambiguated wl-creative-work\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/solido\">s&oacute;lido<\/span> diretamente para de vapor, como indica a seta marcada por n&uacute;mero 3. A alternativa que corresponde a essas afirma&ccedil;&otilde;es &eacute; a letra C.<\/p><h2 class=\"wp-block-heading\" id=\"h-aprenda-mais-sobre-fisica-com-a-coruja\"><span class=\"ez-toc-section\" id=\"Aprenda-mais-sobre-fisica-com-a-Coruja\"><\/span>Aprenda mais sobre f&iacute;sica com a Coruja!<span class=\"ez-toc-section-end\"><\/span><\/h2><p class=\"wp-block-paragraph\">Nos cursos preparat&oacute;rios para o <span id=\"urn:enhancement-0798b4c2-2a8d-42a7-a4fb-96fd72869e1e\" class=\"textannotation disambiguated wl-thing\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/vestibular\">vestibular<\/span> do Estrat&eacute;gia, voc&ecirc; tem acesso a um panorama completo das partes da <span id=\"urn:enhancement-57ff6893-5c90-4590-b48c-c0e5209fc14a\" class=\"textannotation disambiguated wl-creative-work\" itemid=\"https:\/\/data.wordlift.io\/wl110249\/entity\/fisica\">f&iacute;sica<\/span> que aparecem na prova que voc&ecirc; ir&aacute; prestar! Nos cursos da Fuvest, por exemplo, o foco em mec&acirc;nica e <a href=\"https:\/\/vestibulares.estrategia.com\/portal\/fisica\/eletricidade\/\" target=\"_blank\">eletricidade<\/a> favorecem um bom desempenho na prova. Clique no banner abaixo para saber mais detalhes.&nbsp;<\/p><p class=\"wp-block-paragraph\"><a id=\"cta\" class=\"cta-imagem\" href=\"https:\/\/vestibulares.estrategia.com\/curso\/pacote-enem\/\" target=\"blank\">\n                <img decoding=\"async\" width=\"100%\" src=\"https:\/\/vestibulares.estrategia.com\/portal\/wp-content\/uploads\/2021\/12\/Enem.jpg\" alt=\"CTA curso Enem\" title=\"CTA curso Enem\">\n        <\/a>\n\n\n\n\n\n<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Veja-tambem\"><\/span>Veja tamb&eacute;m:<span class=\"ez-toc-section-end\"><\/span><\/h2><ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/vestibulares.estrategia.com\/portal\/fisica\/fisica-enem\/\">O que mais cai em F&iacute;sica no Enem?<\/a>&nbsp;<\/li>\n\n\n\n<li><a href=\"https:\/\/vestibulares.estrategia.com\/portal\/fisica\/ordem-de-grandeza\/\">Ordem de grandeza: conhe&ccedil;a os conceitos e a nota&ccedil;&atilde;o cient&iacute;fica<\/a>&nbsp;<\/li>\n\n\n\n<li><a href=\"https:\/\/vestibulares.estrategia.com\/portal\/fisica\/formulas-fisica-enem\/\">F&oacute;rmulas de F&iacute;sica mais comuns do Enem e outros vestibulares<\/a>&nbsp;<\/li>\n\n\n\n<li><a href=\"https:\/\/vestibulares.estrategia.com\/portal\/fisica\/calorimetria-no-enem\/\">Calorimetria no Enem: como cai?<\/a>&nbsp;<\/li>\n\n\n\n<li><a href=\"https:\/\/vestibulares.estrategia.com\/portal\/fisica\/hidrostatica\/\">Hidrost&aacute;tica: press&atilde;o, densidade e f&oacute;rmulas<\/a>&nbsp;&nbsp;<\/li>\n\n\n\n<li><a href=\"https:\/\/vestibulares.estrategia.com\/portal\/fisica\/optica\/\">Como cai a &oacute;ptica no Enem<\/a>&nbsp;<\/li>\n\n\n\n<li><a href=\"https:\/\/vestibulares.estrategia.com\/portal\/fisica\/eletricidade\/\">Eletricidade: conhe&ccedil;a as principais f&oacute;rmulas e conceitos<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/vestibulares.estrategia.com\/portal\/fisica\/prova-fisica-2-fase-unicamp-2020\/\">Resolu&ccedil;&atilde;o da prova de F&iacute;sica da 2&ordf; Fase da Unicamp 2020<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/vestibulares.estrategia.com\/portal\/fisica\/prova-fuvest-2020-fisica\/\">Resolu&ccedil;&atilde;o Comentada da prova de F&iacute;sica FUVEST 2020<\/a><\/li>\n<\/ul><\/p>\n","protected":false},"excerpt":{"rendered":"Voc&ecirc; sabia que &eacute; poss&iacute;vel encontrar o estado f&iacute;sico de uma subst&acirc;ncia apenas com os valores de temperatura&hellip;\n","protected":false},"author":23,"featured_media":62186,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28],"tags":[],"class_list":["post-62184","post","type-post","status-publish","format-standard","has-post-thumbnail","category-fisica"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.9 (Yoast SEO v28.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Diagrama de Fases: o que \u00e9 e como interpretar<\/title>\n<meta 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