{"id":48356,"date":"2019-11-10T05:47:53","date_gmt":"2019-11-10T04:47:53","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/o-que-e-universal-gas-constant-definicao\/"},"modified":"2019-11-10T05:47:53","modified_gmt":"2019-11-10T04:47:53","slug":"o-que-e-universal-gas-constant-definicao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-universal-gas-constant-definicao\/","title":{"rendered":"O que \u00e9 Universal Gas Constant &#8211; Defini\u00e7\u00e3o"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-clearfix\"><span>pV = nRT.\u00a0Nesta equa\u00e7\u00e3o, o s\u00edmbolo R \u00e9 uma constante chamada constante universal de g\u00e1s que tem o mesmo valor para todos os gases &#8211; a saber, R = 8,31 J \/ mol K. Engenharia t\u00e9rmica<\/span><\/div>\n<\/div>\n<div class=\"su-divider su-divider-style-dotted\"><\/div>\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<div class=\"inside-grid-column\">\n<div class=\"su-spacer\"><\/div>\n<h2><span>Constante universal de g\u00e1s<\/span><\/h2>\n<p><span>Qualquer equa\u00e7\u00e3o que relacione a press\u00e3o, a temperatura e o volume espec\u00edfico de uma subst\u00e2ncia \u00e9 chamada de\u00a0<\/span><strong><span>equa\u00e7\u00e3o de estado<\/span><\/strong><span>\u00a0.\u00a0A\u00a0equa\u00e7\u00e3o de estado\u00a0mais simples e\u00a0<\/span><strong><span>mais conhecida<\/span><\/strong><span>\u00a0para subst\u00e2ncias na fase gasosa \u00e9 a\u00a0<\/span><strong><span>equa\u00e7\u00e3o<\/span><\/strong><span>\u00a0de estado do\u00a0<strong>g\u00e1s ideal<\/strong>\u00a0.\u00a0Foi declarado pela primeira vez por \u00c9mile Clapeyron em 1834 como uma combina\u00e7\u00e3o da lei emp\u00edrica de Boyle, da lei de Charles e da lei de Avogadro.\u00a0Esta equa\u00e7\u00e3o prev\u00ea o\u00a0<\/span><strong><span>comportamento pvT<\/span><\/strong><span>\u00a0de um g\u00e1s com bastante precis\u00e3o para gases dilu\u00eddos ou de baixa press\u00e3o.\u00a0Num g\u00e1s ideal, as mol\u00e9culas n\u00e3o t\u00eam volume e n\u00e3o interagem.\u00a0De acordo com a lei ideal dos gases, a press\u00e3o varia linearmente com a\u00a0<\/span><strong><span>temperatura<\/span><\/strong><span>\u00a0e a\u00a0<\/span><strong><span>quantidade<\/span><\/strong><span>\u00a0e inversamente com o\u00a0<\/span><strong><span>volume<\/span><\/strong><span>\u00a0.<\/span><\/p>\n<p><strong><i><span>pV = nRT<\/span><\/i><\/strong><\/p>\n<p><span>Onde:<\/span><\/p>\n<ul>\n<li><strong><em><span>p<\/span><\/em><\/strong><span>\u00a0\u00e9 a<\/span><strong><span>\u00a0press\u00e3o absoluta<\/span><\/strong><span>\u00a0do g\u00e1s<\/span><\/li>\n<li><strong><em><span>n<\/span><\/em><\/strong><span>\u00a0\u00e9 a<\/span><strong><span>\u00a0quantidade<\/span><\/strong><span>\u00a0de subst\u00e2ncia<\/span><\/li>\n<li><strong><em><span>T<\/span><\/em><\/strong><span>\u00a0\u00e9 a<\/span><strong><span>\u00a0temperatura absoluta<\/span><\/strong><\/li>\n<li><strong><em><span>V<\/span><\/em><\/strong><span>\u00a0\u00e9 o<\/span><strong><span>\u00a0volume<\/span><\/strong><\/li>\n<li><strong><em><span>R<\/span><\/em>\u00a0<\/strong><span>\u00a0\u00e9 a<\/span><strong><span>\u00a0constante de g\u00e1s<\/span><\/strong><span>\u00a0ideal, ou universal,igual ao produto da constante de Boltzmann e da constante de Avogadro,<\/span><\/li>\n<\/ul>\n<p><span>Nesta equa\u00e7\u00e3o, o s\u00edmbolo R \u00e9 uma constante chamada constante\u00a0<\/span><strong><span>universal de g\u00e1s<\/span><\/strong><span>\u00a0que tem o mesmo valor para todos os gases &#8211; ou seja,\u00a0<\/span><strong><span>R = 8,31 J \/ mol K.<\/span><\/strong><\/p>\n<p><span>O poder da lei do g\u00e1s ideal est\u00e1 em sua\u00a0<\/span><strong><span>simplicidade<\/span><\/strong><span>\u00a0.\u00a0Quando quaisquer\u00a0<\/span><strong><span>duas<\/span><\/strong><span>\u00a0das vari\u00e1veis \u200b\u200btermodin\u00e2micas, p, ve T\u00a0<\/span><strong><span>s\u00e3o\u00a0<\/span><\/strong><strong><span>dadas<\/span><\/strong><span>\u00a0, a\u00a0<\/span><strong><span>terceira<\/span><\/strong><span>\u00a0pode\u00a0<\/span><strong><span>ser facilmente encontrada<\/span><\/strong><span>\u00a0.\u00a0Muitas condi\u00e7\u00f5es f\u00edsicas dos gases calculadas pelos engenheiros se enquadram na descri\u00e7\u00e3o acima.\u00a0Talvez o uso mais comum do comportamento do g\u00e1s estudado pelos engenheiros seja o processo de compress\u00e3o e expans\u00e3o usando aproxima\u00e7\u00f5es ideais de g\u00e1s.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Molar-specific-heats-ideal-gas.png\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-16807 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Molar-specific-heats-ideal-gas.png\" alt=\"Calores molares espec\u00edficos - g\u00e1s ideal\" width=\"353\" height=\"251\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Molar-specific-heats-ideal-gas.png\" \/><\/a><\/p>\n<\/div>\n<\/div>\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<div class=\"inside-grid-column\"><\/div>\n<div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\">\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<\/div>\n","protected":false},"excerpt":{"rendered":"<p>pV = nRT.\u00a0Nesta equa\u00e7\u00e3o, o s\u00edmbolo R \u00e9 uma constante chamada constante universal de g\u00e1s que tem o mesmo valor para todos os gases &#8211; a saber, R = 8,31 J \/ mol K. Engenharia t\u00e9rmica Constante universal de g\u00e1s Qualquer equa\u00e7\u00e3o que relacione a press\u00e3o, a temperatura e o volume espec\u00edfico de uma subst\u00e2ncia &#8230; <a title=\"O que \u00e9 Universal Gas Constant &#8211; Defini\u00e7\u00e3o\" class=\"read-more\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-universal-gas-constant-definicao\/\" aria-label=\"More on O que \u00e9 Universal Gas Constant &#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 Universal Gas Constant - Defini\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"pV = nRT. Nesta equa\u00e7\u00e3o, o s\u00edmbolo R \u00e9 uma constante chamada constante universal de g\u00e1s que tem o mesmo valor para todos os gases - a saber, R = 8,31 J \/ mol K. 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-universal-gas-constant-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 Universal Gas Constant - Defini\u00e7\u00e3o\" \/>\n<meta property=\"og:description\" content=\"pV = nRT. Nesta equa\u00e7\u00e3o, o s\u00edmbolo R \u00e9 uma constante chamada constante universal de g\u00e1s que tem o mesmo valor para todos os gases - a saber, R = 8,31 J \/ mol K. Engenharia t\u00e9rmica\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-universal-gas-constant-definicao\/\" \/>\n<meta property=\"og:site_name\" content=\"Thermal Engineering\" \/>\n<meta property=\"article:published_time\" content=\"2019-11-10T04:47:53+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Molar-specific-heats-ideal-gas.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=\"2 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-universal-gas-constant-definicao\/#primaryimage\",\"inLanguage\":\"pt-BR\",\"url\":\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Molar-specific-heats-ideal-gas.png\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-universal-gas-constant-definicao\/#webpage\",\"url\":\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-universal-gas-constant-definicao\/\",\"name\":\"O que \\u00e9 Universal Gas Constant - Defini\\u00e7\\u00e3o\",\"isPartOf\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-universal-gas-constant-definicao\/#primaryimage\"},\"datePublished\":\"2019-11-10T04:47:53+00:00\",\"dateModified\":\"2019-11-10T04:47:53+00:00\",\"author\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\"},\"description\":\"pV = nRT. Nesta equa\\u00e7\\u00e3o, o s\\u00edmbolo R \\u00e9 uma constante chamada constante universal de g\\u00e1s que tem o mesmo valor para todos os gases - a saber, R = 8,31 J \/ mol K. Engenharia t\\u00e9rmica\",\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-universal-gas-constant-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\/48356"}],"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=48356"}],"version-history":[{"count":0,"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/posts\/48356\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/media?parent=48356"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/categories?post=48356"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/tags?post=48356"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}