{"id":48837,"date":"2019-11-12T09:37:33","date_gmt":"2019-11-12T08:37:33","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/o-que-e-sublimacao-definicao\/"},"modified":"2020-01-30T13:33:05","modified_gmt":"2020-01-30T12:33:05","slug":"o-que-e-sublimacao-definicao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-sublimacao-definicao\/","title":{"rendered":"O que \u00e9 sublima\u00e7\u00e3o – defini\u00e7\u00e3o"},"content":{"rendered":"
\n
Em geral, a sublima\u00e7\u00e3o \u00e9 uma mudan\u00e7a de fase de uma subst\u00e2ncia diretamente da fase s\u00f3lida para a fase gasosa sem passar pela fase l\u00edquida intermedi\u00e1ria.\u00a0Engenharia T\u00e9rmica<\/div>\n<\/div>\n
<\/div>\n
\n
\n
<\/div>\n

Sublima\u00e7\u00e3o<\/h2>\n
\"sublima\u00e7\u00e3o\"<\/a>
Fonte: wikipedia.org CC BY-SA<\/figcaption><\/figure>\n

Em geral, a\u00a0sublima\u00e7\u00e3o<\/strong>\u00a0\u00e9 uma\u00a0mudan\u00e7a<\/strong><\/a>\u00a0de\u00a0fase<\/strong><\/a>\u00a0de uma subst\u00e2ncia diretamente da fase s\u00f3lida para a fase gasosa sem passar pela fase l\u00edquida intermedi\u00e1ria.\u00a0A sublima\u00e7\u00e3o<\/strong>\u00a0\u00e9 uma\u00a0altera\u00e7\u00e3o de fase endot\u00e9rmica<\/strong>\u00a0que ocorre a temperaturas e press\u00f5es\u00a0abaixo do ponto triplo de uma subst\u00e2ncia<\/strong>\u00a0em seu diagrama de fases.<\/p>\n

Considere o gelo a -10 \u00b0 C e \u00e0 press\u00e3o de 500 Pa. Nesse caso, a transfer\u00eancia de calor para o gelo resulta primeiro em um aumento da temperatura para -8 \u00b0 C.\u00a0Nesse ponto, no entanto, o gelo passa diretamente da fase s\u00f3lida para a fase de vapor no processo conhecido como sublima\u00e7\u00e3o.\u00a0O calor correspondente \u00e9 chamado de\u00a0calor da sublima\u00e7\u00e3o<\/strong>\u00a0, L\u00a0s<\/sub>\u00a0.\u00a0Transfer\u00eancia de calor adicional resultaria no superaquecimento do vapor.<\/p>\n

Como a sublima\u00e7\u00e3o \u00e9 uma mudan\u00e7a de fase endot\u00e9rmica, requer energia adicional.\u00a0Essa energia adicional necess\u00e1ria pode ser calculada adicionando a\u00a0entalpia de fus\u00e3o<\/strong>\u00a0e a\u00a0entalpia de vaporiza\u00e7\u00e3o<\/strong>\u00a0e \u00e9 conhecida como entalpia de sublima\u00e7\u00e3o (tamb\u00e9m chamada de calor de sublima\u00e7\u00e3o).<\/p>\n

Para algumas subst\u00e2ncias, a sublima\u00e7\u00e3o \u00e9 muito mais f\u00e1cil do que a evapora\u00e7\u00e3o do fundido.\u00a0Depende do ponto triplo.\u00a0Quando a press\u00e3o do seu ponto triplo \u00e9 muito alta, \u00e9 dif\u00edcil obt\u00ea-los como l\u00edquidos.<\/p>\n

O processo inverso de sublima\u00e7\u00e3o \u00e9 a sublima\u00e7\u00e3o, na qual uma subst\u00e2ncia passa diretamente de um g\u00e1s para uma fase s\u00f3lida.<\/p>\n<\/div>\n<\/div>\n

\n
\n
\n
\n
\n

 <\/p>\n<\/div>\n

……………………………………………………………………………………………………………………………….<\/p>\n

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<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Em geral, a sublima\u00e7\u00e3o \u00e9 uma mudan\u00e7a de fase de uma subst\u00e2ncia diretamente da fase s\u00f3lida para a fase gasosa sem passar pela fase l\u00edquida intermedi\u00e1ria.\u00a0Engenharia T\u00e9rmica Sublima\u00e7\u00e3o Fonte: wikipedia.org CC BY-SA Em geral, a\u00a0sublima\u00e7\u00e3o\u00a0\u00e9 uma\u00a0mudan\u00e7a\u00a0de\u00a0fase\u00a0de uma subst\u00e2ncia diretamente da fase s\u00f3lida para a fase gasosa sem passar pela fase l\u00edquida intermedi\u00e1ria.\u00a0A sublima\u00e7\u00e3o\u00a0\u00e9 uma\u00a0altera\u00e7\u00e3o de … 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":"\nO que \u00e9 sublima\u00e7\u00e3o - defini\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"Em geral, a sublima\u00e7\u00e3o \u00e9 uma mudan\u00e7a de fase de uma subst\u00e2ncia diretamente da fase s\u00f3lida para a fase gasosa sem passar pela fase l\u00edquida intermedi\u00e1ria. 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-sublimacao-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 sublima\u00e7\u00e3o - defini\u00e7\u00e3o\" \/>\n<meta property=\"og:description\" content=\"Em geral, a sublima\u00e7\u00e3o \u00e9 uma mudan\u00e7a de fase de uma subst\u00e2ncia diretamente da fase s\u00f3lida para a fase gasosa sem passar pela fase l\u00edquida intermedi\u00e1ria. Engenharia T\u00e9rmica\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-sublimacao-definicao\/\" \/>\n<meta property=\"og:site_name\" content=\"Thermal Engineering\" \/>\n<meta property=\"article:published_time\" content=\"2019-11-12T08:37:33+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-01-30T12:33:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Sublimation-Desublimation-min-300x253.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=\"1 minuto\">\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-sublimacao-definicao\/#primaryimage\",\"inLanguage\":\"pt-BR\",\"url\":\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Sublimation-Desublimation-min-300x253.png\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-sublimacao-definicao\/#webpage\",\"url\":\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-sublimacao-definicao\/\",\"name\":\"O que \\u00e9 sublima\\u00e7\\u00e3o - defini\\u00e7\\u00e3o\",\"isPartOf\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-sublimacao-definicao\/#primaryimage\"},\"datePublished\":\"2019-11-12T08:37:33+00:00\",\"dateModified\":\"2020-01-30T12:33:05+00:00\",\"author\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\"},\"description\":\"Em geral, a sublima\\u00e7\\u00e3o \\u00e9 uma mudan\\u00e7a de fase de uma subst\\u00e2ncia diretamente da fase s\\u00f3lida para a fase gasosa sem passar pela fase l\\u00edquida intermedi\\u00e1ria. Engenharia T\\u00e9rmica\",\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-sublimacao-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\/48837"}],"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=48837"}],"version-history":[{"count":0,"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/posts\/48837\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/media?parent=48837"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/categories?post=48837"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/tags?post=48837"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}