{"id":48881,"date":"2019-11-12T14:52:15","date_gmt":"2019-11-12T13:52:15","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/o-que-e-ponto-critico-da-agua-definicao\/"},"modified":"2020-01-31T12:34:27","modified_gmt":"2020-01-31T11:34:27","slug":"o-que-e-ponto-critico-da-agua-definicao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-ponto-critico-da-agua-definicao\/","title":{"rendered":"O que \u00e9 Ponto Cr\u00edtico da \u00c1gua &#8211; Defini\u00e7\u00e3o"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-clearfix\">No ponto cr\u00edtico, os estados l\u00edquido saturado e vapor saturado s\u00e3o id\u00eanticos.\u00a0Na termodin\u00e2mica, um ponto cr\u00edtico (ou estado cr\u00edtico) \u00e9 o ponto final de uma curva de equil\u00edbrio de fase.\u00a0Engenharia T\u00e9rmica<\/div>\n<\/div>\n<div class=\"su-divider su-divider-style-dotted\"><\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-60 lgc-tablet-grid-60 lgc-mobile-grid-100 lgc-equal-heights lgc-first\">\n<div class=\"inside-grid-column\">\n<div class=\"su-spacer\"><\/div>\n<h2>Ponto Cr\u00edtico da \u00c1gua<\/h2>\n<p>Na termodin\u00e2mica, um\u00a0\u00a0<strong>ponto cr\u00edtico<\/strong>\u00a0\u00a0(ou\u00a0\u00a0<strong>estado cr\u00edtico<\/strong>\u00a0) \u00e9 o ponto final de uma curva de equil\u00edbrio de fase.\u00a0O diagrama de fases da \u00e1gua \u00e9 um diagrama de press\u00e3o-temperatura da \u00e1gua que mostra como as\u00a0<strong>tr\u00eas fases<\/strong>\u00a0(s\u00f3lida, l\u00edquida e vapor) podem\u00a0<strong>coexistir<\/strong>\u00a0juntas em equil\u00edbrio t\u00e9rmico.\u00a0Ao longo da linha de vaporiza\u00e7\u00e3o, as fases l\u00edquida e de vapor est\u00e3o em equil\u00edbrio, ao longo da linha de fus\u00e3o, as fases s\u00f3lida e l\u00edquida est\u00e3o em equil\u00edbrio e, ao longo da\u00a0<a title=\"Sublima\u00e7\u00e3o\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/phase-change-phase-transition\/sublimation\/\">linha de sublima\u00e7\u00e3o<\/a>\u00a0, as\u00a0<a title=\"Propriedades do Steam - O que \u00e9 o Steam\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-o-steam-propriedades-do-steam-definicao\/\">fases<\/a>\u00a0s\u00f3lida e de\u00a0<a title=\"Propriedades do Steam - O que \u00e9 o Steam\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-o-steam-propriedades-do-steam-definicao\/\">vapor<\/a>\u00a0est\u00e3o em equil\u00edbrio.\u00a0O \u00fanico ponto no qual todas as tr\u00eas fases podem existir em equil\u00edbrio \u00e9 o\u00a0<a title=\"Ponto Triplo da \u00c1gua\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-nuclear-engineering\/properties-of-water\/triple-point-of-water\/\">ponto triplo<\/a>\u00a0.\u00a0A linha de vaporiza\u00e7\u00e3o termina no\u00a0<strong>ponto cr\u00edtico<\/strong>porque n\u00e3o h\u00e1 mudan\u00e7a distinta da fase l\u00edquida para a fase vapor acima do\u00a0<strong>ponto cr\u00edtico<\/strong>\u00a0.<\/p>\n<p><strong>Acima do ponto cr\u00edtico<\/strong>\u00a0, n\u00e3o\u00a0<strong>h\u00e1 processo de vaporiza\u00e7\u00e3o a temperatura constante<\/strong>\u00a0.\u00a0No ponto cr\u00edtico, os estados l\u00edquido saturado e vapor saturado s\u00e3o\u00a0<strong>id\u00eanticos<\/strong>\u00a0.\u00a0A temperatura, press\u00e3o e volume espec\u00edfico no ponto cr\u00edtico s\u00e3o chamados temperatura cr\u00edtica, press\u00e3o cr\u00edtica e volume cr\u00edtico.\u00a0Para a \u00e1gua, esses par\u00e2metros s\u00e3o os seguintes:<\/p>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-40 lgc-tablet-grid-40 lgc-mobile-grid-100 lgc-equal-heights lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-spacer\"><\/div>\n<h2>Par\u00e2metros do ponto cr\u00edtico<\/h2>\n<ul>\n<li>P\u00a0<sub>cr<\/sub>\u00a0= 22,09 MPa<\/li>\n<li>T\u00a0<sub>cr<\/sub>\u00a0= 374,14 \u00b0 C (ou 647,3 K)<\/li>\n<li>v\u00a0<sub>cr<\/sub>\u00a0= 0,003155 m3 \/ kg<\/li>\n<li>u\u00a0<sub>f<\/sub>\u00a0= u\u00a0<sub>g<\/sub>\u00a0= 2014 kJ \/ kg<\/li>\n<li>h\u00a0<sub>f<\/sub>\u00a0= h\u00a0<sub>g<\/sub>\u00a0= 2084 kJ \/ kg<\/li>\n<li>s\u00a0<sub>f<\/sub>\u00a0= s\u00a0<sub>g<\/sub>\u00a0= 4,406 kJ \/ kg K<\/li>\n<\/ul>\n<figure id=\"attachment_14172\" class=\"wp-caption aligncenter\" aria-describedby=\"caption-attachment-14172\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Boiling-point-of-water.png\"><img loading=\"lazy\" class=\"size-medium wp-image-14172 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Boiling-point-of-water-300x255.png\" alt=\"Diagrama de fases da \u00e1gua\" width=\"300\" height=\"255\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Boiling-point-of-water-300x255.png\" \/><\/a><figcaption id=\"caption-attachment-14172\" class=\"wp-caption-text\">Diagrama de fases da \u00e1gua.<br \/>\nFonte: wikipedia.org CC BY-SA<\/figcaption><\/figure>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong><span>P\u00a0<\/span><sub><span>cr<\/span><\/sub><span>\u00a0= 22,09 MPa<\/span><\/strong><\/li>\n<li><strong><span>T\u00a0<\/span><sub><span>cr<\/span><\/sub><span>\u00a0= 374,14 \u00b0 C (ou 647,3 K)<\/span><\/strong><\/li>\n<li><strong><span>v\u00a0<\/span><sub><span>cr<\/span><\/sub><span>\u00a0= 0,003155 m3 \/ kg<\/span><\/strong><\/li>\n<li><strong><span>u\u00a0<\/span><sub><span>f<\/span><\/sub><span>\u00a0= u\u00a0<\/span><sub><span>g<\/span><\/sub><span>\u00a0= 2014 kJ \/ kg<\/span><\/strong><\/li>\n<li><strong><span>h\u00a0<\/span><sub><span>f<\/span><\/sub><span>\u00a0= h\u00a0<\/span><sub><span>g<\/span><\/sub><span>\u00a0= 2084 kJ \/ kg<\/span><\/strong><\/li>\n<li><strong><span>s\u00a0<\/span><sub><span>f<\/span><\/sub><span>\u00a0= s\u00a0<\/span><sub><span>g<\/span><\/sub><span>\u00a0= 4,406 kJ \/ kg K<\/span><\/strong><\/li>\n<\/ul>\n<p><span>Uma\u00a0<\/span><strong><span>fase supercr\u00edtica<\/span><\/strong><span>\u00a0(por exemplo, \u00e1gua a uma press\u00e3o acima da press\u00e3o cr\u00edtica) n\u00e3o se separa em duas fases quando \u00e9 resfriada a press\u00e3o constante (ao longo de uma linha horizontal acima do ponto cr\u00edtico no diagrama de fases).\u00a0Em vez disso, suas propriedades mudam\u00a0<\/span><strong><span>gradual<\/span><\/strong><span>\u00a0e\u00a0<\/span><strong><span>continuamente<\/span><\/strong><span>\u00a0daquelas que normalmente associamos a um g\u00e1s (baixa densidade, grande compressibilidade) para as de um l\u00edquido (alta densidade, pequena compressibilidade) sem uma mudan\u00e7a de fase.<\/span><\/p>\n<p><span>Como pode ser visto nas\u00a0<\/span><a title=\"Tabelas de Vapor - Propriedades Espec\u00edficas da \u00c1gua e Vapor\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/steam-tables\/\"><strong><span>tabelas de vapor<\/span><\/strong><\/a><span>\u00a0, quando nos aproximamos do\u00a0<\/span><strong><span>ponto cr\u00edtico<\/span><\/strong><span>\u00a0, as diferen\u00e7as nas propriedades f\u00edsicas (como densidade e entalpia) entre as fases l\u00edquida e de vapor\u00a0<\/span><strong><span>se tornam menores<\/span><\/strong><span>\u00a0.\u00a0Por exemplo, logo abaixo do ponto cr\u00edtico \u00e0 press\u00e3o de 21,8 MPa e \u00e0 temperatura de 373 \u00b0 C, a entalpia espec\u00edfica do l\u00edquido saturado \u00e9 de 1970 kJ \/ kg, enquanto a entalpia espec\u00edfica do vapor saturado \u00e9 de 2230 kJ \/ kg.\u00a0O calor espec\u00edfico da vaporiza\u00e7\u00e3o \u00e9 de apenas 260 kJ \/ kg.\u00a0Exatamente no ponto cr\u00edtico, essas diferen\u00e7as se tornam nulas e, nesse ponto, a distin\u00e7\u00e3o entre l\u00edquido e vapor desaparece.\u00a0O\u00a0<\/span><strong><span>calor da vaporiza\u00e7\u00e3o<\/span><\/strong><span>\u00a0tamb\u00e9m se torna zero no\u00a0<\/span><strong><span>ponto cr\u00edtico<\/span><\/strong><span>\u00a0.<\/span><\/p>\n<p><span>Perto do ponto cr\u00edtico, as propriedades f\u00edsicas do l\u00edquido e do vapor mudam dramaticamente.\u00a0Por exemplo, a \u00e1gua l\u00edquida em condi\u00e7\u00f5es normais tem um baixo coeficiente de expans\u00e3o t\u00e9rmica, \u00e9 quase incompress\u00edvel, \u00e9 um excelente solvente para eletr\u00f3litos e possui uma constante diel\u00e9trica alta.\u00a0Mas perto do ponto cr\u00edtico, todas essas propriedades mudam exatamente para o oposto: a \u00e1gua se torna compress\u00edvel, tem um coeficiente de expans\u00e3o t\u00e9rmica significativo, tem uma constante diel\u00e9trica baixa, \u00e9 um solvente ruim para os eletr\u00f3litos.\u00a0A press\u00f5es superiores \u00e0 press\u00e3o cr\u00edtica, as propriedades f\u00edsicas tamb\u00e9m passam por uma transi\u00e7\u00e3o r\u00e1pida, mas sem singularidades.\u00a0Com o aumento da press\u00e3o, a transi\u00e7\u00e3o se torna mais suave.\u00a0Essa regi\u00e3o de transi\u00e7\u00e3o \u00e9 chamada\u00a0<\/span><strong><span>regi\u00e3o pseudocr\u00edtica<\/span><\/strong><span>, a uma dada press\u00e3o, a temperatura em que o calor espec\u00edfico tem seu m\u00e1ximo \u00e9 chamada de ponto pseudocr\u00edtico.<\/span><\/p>\n<figure id=\"attachment_16208\" class=\"wp-caption aligncenter\" aria-describedby=\"caption-attachment-16208\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Critical-Point-thermodynamics.png\"><img loading=\"lazy\" class=\"size-full wp-image-16208 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Critical-Point-thermodynamics.png\" alt=\"Ponto cr\u00edtico\" width=\"481\" height=\"275\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Critical-Point-thermodynamics.png\" \/><\/a><figcaption id=\"caption-attachment-16208\" class=\"wp-caption-text\"><span>Para quase todos os materiais familiares, as press\u00f5es cr\u00edticas s\u00e3o muito maiores que a press\u00e3o atmosf\u00e9rica; portanto, n\u00e3o observamos esse comportamento na vida cotidiana.<\/span><\/figcaption><\/figure>\n<p><span>Para quase todos os materiais familiares, as press\u00f5es cr\u00edticas s\u00e3o muito maiores que a press\u00e3o atmosf\u00e9rica; portanto, n\u00e3o observamos esse comportamento na vida cotidiana.\u00a0Mas na\u00a0<\/span><strong><span>engenharia de energia<\/span><\/strong><span>\u00a0, existem muitas aplica\u00e7\u00f5es para\u00a0<\/span><strong><span>\u00e1gua supercr\u00edtica<\/span><\/strong><span>\u00a0.\u00a0Uma das maneiras de aumentar a efici\u00eancia t\u00e9rmica dos ciclos termodin\u00e2micos (por exemplo, ciclo Rankine) \u00e9 aumentar o pico de temperatura e press\u00e3o na caldeira.\u00a0Caldeiras a vapor de alta press\u00e3o em usinas termel\u00e9tricas operam regularmente a press\u00f5es e temperaturas bem acima do ponto cr\u00edtico.<\/span><\/p>\n<figure id=\"attachment_16202\" class=\"wp-caption alignright\" aria-describedby=\"caption-attachment-16202\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/supercritical-water-reactor-SCWR-design.png\"><img loading=\"lazy\" class=\"size-medium wp-image-16202 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/supercritical-water-reactor-SCWR-design-300x296.png\" alt=\"Conceito do SCWR\" width=\"300\" height=\"296\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/supercritical-water-reactor-SCWR-design-300x296.png\" \/><\/a><figcaption id=\"caption-attachment-16202\" class=\"wp-caption-text\"><span>Conceito do SCWR.<\/span><br \/>\n<span>Autor (Dom\u00ednio p\u00fablico): Departamento de Energia dos EUA<\/span><\/figcaption><\/figure>\n<p><strong><span>Na engenharia nuclear<\/span><\/strong><span>\u00a0, o\u00a0<\/span><strong><span>reator supercr\u00edtico de \u00e1gua<\/span><\/strong><span>\u00a0\u00e9 considerado um avan\u00e7o promissor para as usinas nucleares devido \u00e0 sua alta efici\u00eancia t\u00e9rmica (~ 45% vs. ~ 33% para as LWRs atuais).\u00a0Esse conceito de reator opera a press\u00e3o supercr\u00edtica (ou seja, maior que 22,1 MPa) e pertence aos\u00a0projetos de reatores da\u00a0<\/span><strong><span>gera\u00e7\u00e3o IV<\/span><\/strong><span>\u00a0.<\/span><\/p>\n<p><span>Veja tamb\u00e9m:\u00a0<\/span><a title=\"Reator Supercr\u00edtico de \u00c1gua - SCWR\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power-plant\/reactor-types\/supercritical-water-reactor-scwr\/\"><span>Reator de \u00e1gua supercr\u00edtico<\/span><\/a><\/p>\n<p>&nbsp;<\/p>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights lgc-first lgc-last\">\n<p>&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.<\/p>\n<p>Este artigo \u00e9 baseado na tradu\u00e7\u00e3o autom\u00e1tica do artigo original em ingl\u00eas. Para mais informa\u00e7\u00f5es, consulte o artigo em ingl\u00eas. Voc\u00ea pode nos ajudar. Se voc\u00ea deseja corrigir a tradu\u00e7\u00e3o, envie-a para: translations@nuclear-power.com ou preencha o formul\u00e1rio de tradu\u00e7\u00e3o on-line. Agradecemos sua ajuda, atualizaremos a tradu\u00e7\u00e3o o mais r\u00e1pido poss\u00edvel. Obrigado.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>No ponto cr\u00edtico, os estados l\u00edquido saturado e vapor saturado s\u00e3o id\u00eanticos.\u00a0Na termodin\u00e2mica, um ponto cr\u00edtico (ou estado cr\u00edtico) \u00e9 o ponto final de uma curva de equil\u00edbrio de fase.\u00a0Engenharia T\u00e9rmica Ponto Cr\u00edtico da \u00c1gua Na termodin\u00e2mica, um\u00a0\u00a0ponto cr\u00edtico\u00a0\u00a0(ou\u00a0\u00a0estado cr\u00edtico\u00a0) \u00e9 o ponto final de uma curva de equil\u00edbrio de fase.\u00a0O diagrama de fases da &#8230; <a title=\"O que \u00e9 Ponto Cr\u00edtico da \u00c1gua &#8211; Defini\u00e7\u00e3o\" class=\"read-more\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-ponto-critico-da-agua-definicao\/\" aria-label=\"More on O que \u00e9 Ponto Cr\u00edtico da \u00c1gua &#8211; Defini\u00e7\u00e3o\">Ler mais<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[14],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>O que \u00e9 Ponto Cr\u00edtico da \u00c1gua - Defini\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"No ponto cr\u00edtico, os estados l\u00edquido saturado e vapor saturado s\u00e3o id\u00eanticos. Na termodin\u00e2mica, um ponto cr\u00edtico (ou estado cr\u00edtico) \u00e9 o ponto final de uma curva de equil\u00edbrio de fase. Engenharia T\u00e9rmica\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-ponto-critico-da-agua-definicao\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"O que \u00e9 Ponto Cr\u00edtico da \u00c1gua - Defini\u00e7\u00e3o\" \/>\n<meta property=\"og:description\" content=\"No ponto cr\u00edtico, os estados l\u00edquido saturado e vapor saturado s\u00e3o id\u00eanticos. Na termodin\u00e2mica, um ponto cr\u00edtico (ou estado cr\u00edtico) \u00e9 o ponto final de uma curva de equil\u00edbrio de fase. Engenharia T\u00e9rmica\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-ponto-critico-da-agua-definicao\/\" \/>\n<meta property=\"og:site_name\" content=\"Thermal Engineering\" \/>\n<meta property=\"article:published_time\" content=\"2019-11-12T13:52:15+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-01-31T11:34:27+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Boiling-point-of-water-300x255.png\" \/>\n<meta name=\"twitter:card\" content=\"summary\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\">\n\t<meta name=\"twitter:data1\" content=\"Nick Connor\">\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\">\n\t<meta name=\"twitter:data2\" content=\"4 minutos\">\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#website\",\"url\":\"https:\/\/www.thermal-engineering.org\/fr\/\",\"name\":\"Thermal Engineering\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/www.thermal-engineering.org\/fr\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pt-BR\"},{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-ponto-critico-da-agua-definicao\/#primaryimage\",\"inLanguage\":\"pt-BR\",\"url\":\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Boiling-point-of-water-300x255.png\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-ponto-critico-da-agua-definicao\/#webpage\",\"url\":\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-ponto-critico-da-agua-definicao\/\",\"name\":\"O que \\u00e9 Ponto Cr\\u00edtico da \\u00c1gua - Defini\\u00e7\\u00e3o\",\"isPartOf\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-ponto-critico-da-agua-definicao\/#primaryimage\"},\"datePublished\":\"2019-11-12T13:52:15+00:00\",\"dateModified\":\"2020-01-31T11:34:27+00:00\",\"author\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\"},\"description\":\"No ponto cr\\u00edtico, os estados l\\u00edquido saturado e vapor saturado s\\u00e3o id\\u00eanticos. Na termodin\\u00e2mica, um ponto cr\\u00edtico (ou estado cr\\u00edtico) \\u00e9 o ponto final de uma curva de equil\\u00edbrio de fase. Engenharia T\\u00e9rmica\",\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-ponto-critico-da-agua-definicao\/\"]}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\",\"name\":\"Nick Connor\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#personlogo\",\"inLanguage\":\"pt-BR\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g\",\"caption\":\"Nick Connor\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","_links":{"self":[{"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/posts\/48881"}],"collection":[{"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/comments?post=48881"}],"version-history":[{"count":0,"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/posts\/48881\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/media?parent=48881"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/categories?post=48881"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/tags?post=48881"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}