{"id":70173,"date":"2023-10-20T12:00:00","date_gmt":"2023-10-20T15:00:00","guid":{"rendered":"https:\/\/www.ufrgs.br\/amlef\/?p=70173"},"modified":"2023-12-11T17:31:07","modified_gmt":"2023-12-11T20:31:07","slug":"a-lei-zero-da-termodinamica-definindo-temperatura","status":"publish","type":"post","link":"https:\/\/www.ufrgs.br\/amlef\/2023\/10\/20\/a-lei-zero-da-termodinamica-definindo-temperatura\/","title":{"rendered":"Termodin\u00e2mica: Lei Zero \u2014 definindo Temperatura"},"content":{"rendered":"\n<figure class=\"wp-block-image alignright size-medium is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"296\" src=\"https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/kisspng-lightning-weather-icon-blue-weather-icon-5a901702ab59c4.5840305115193925147019-300x296.png\" alt class=\"wp-image-70202\" srcset=\"https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/kisspng-lightning-weather-icon-blue-weather-icon-5a901702ab59c4.5840305115193925147019-300x296.png 300w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/kisspng-lightning-weather-icon-blue-weather-icon-5a901702ab59c4.5840305115193925147019-1024x1011.png 1024w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/kisspng-lightning-weather-icon-blue-weather-icon-5a901702ab59c4.5840305115193925147019-768x759.png 768w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/kisspng-lightning-weather-icon-blue-weather-icon-5a901702ab59c4.5840305115193925147019-40x40.png 40w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/kisspng-lightning-weather-icon-blue-weather-icon-5a901702ab59c4.5840305115193925147019-205x202.png 205w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/kisspng-lightning-weather-icon-blue-weather-icon-5a901702ab59c4.5840305115193925147019-480x474.png 480w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/kisspng-lightning-weather-icon-blue-weather-icon-5a901702ab59c4.5840305115193925147019.png 1142w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><figcaption class=\"wp-element-caption\">Figura 1. \u00cdcones de pre\u00advi\u00ads\u00e3o do&nbsp;tempo.&nbsp;<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Antes de come\u00e7ar esse artigo, vou lhe fazer um desafio, neste exato momento, sem colar, me diga: qual a tem\u00adpe\u00adra\u00adtura que est\u00e1 fazendo na sua cidade?<br>Feito? Quais fatores voc\u00ea usou para dar esse chute? Fez alguma com\u00adpa\u00adra\u00ad\u00e7\u00e3o? Pensou que est\u00e1 mais quente agora do que estava hoje de manh\u00e3 ou algo assim?<br>Essas per\u00adgun\u00adtas podem parecer bobas, mas vamos manter esses ques\u00adti\u00ado\u00adna\u00admen\u00adtos em mente enquanto pen\u00adsa\u00admos sobre Temperatura.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Os problemas da medida de Temperatura<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vamos dar um passo atr\u00e1s em uma parte que (sin\u00adce\u00adra\u00admente) \u00e9 um tanto confusa: o con\u00adceito de Tem\u00adpe\u00adra\u00adtura. Se formos definir em termos t\u00e9c\u00adni\u00adcos, a tem\u00adpe\u00adra\u00adtura \u00e9 \u201cum par\u00e2\u00adme\u00adtro f\u00edsico pro\u00adpor\u00adci\u00ado\u00adnal \u00e0 energia t\u00e9rmica do sistema\u201d. Isso \u00e9 bas\u00adtante abs\u00adtrato, n\u00e3o con\u00adcorda? Mas como um con\u00adceito t\u00e3o usual, que ouvimos o tempo todo, pode ser t\u00e3o complexo?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Essa com\u00adple\u00adxi\u00addade se deve ao fato da tem\u00adpe\u00adra\u00adtura ser algo de dif\u00edcil medi\u00e7\u00e3o, prin\u00adci\u00adpal\u00admente se con\u00adsi\u00adde\u00adrar\u00admos os nossos sen\u00adti\u00addos como par\u00e2\u00adme\u00adtro. Para exem\u00adpli\u00adfi\u00adcar,&nbsp;no texto <strong><a href=\"https:\/\/www.ufrgs.br\/amlef\/2023\/04\/24\/termodinamica-para-onde-vai-o-calor\/\">Ter\u00admo\u00addi\u00adn\u00e2\u00admica: para onde vai o&nbsp;Calor?<\/a><\/strong> fizemos uma pro\u00adposta de expe\u00adri\u00admento envol\u00advendo tr\u00eas reci\u00adpi\u00aden\u00adtes com \u00e1gua em dife\u00adren\u00adtes tem\u00adpe\u00adra\u00adtu\u00adras. Nele \u00e9 pos\u00ads\u00ed\u00advel notar algo inte\u00adres\u00adsante a res\u00adpeito de nossas per\u00adcep\u00ad\u00e7\u00f5es sen\u00adso\u00adri\u00adais de tem\u00adpe\u00adra\u00adtura: a tem\u00adpe\u00adra\u00adtura per\u00adce\u00adbida no pote inter\u00adme\u00addi\u00e1\u00adrio depende de qual foi o pote de onde a m\u00e3o saiu (quente ou frio). Como dizer que estamos medindo a tem\u00adpe\u00adra\u00adtura da \u00e1gua se cada m\u00e3o a percebe de maneira dife\u00adrente? O que sen\u00adti\u00admos n\u00e3o \u00e9 a tem\u00adpe\u00adra\u00adtura em si, nesse caso parece ser a dife\u00adren\u00e7a de tem\u00adpe\u00adra\u00adtura. Mas ser\u00e1 que podemos con\u00adcluir que o que real\u00admente sen\u00adti\u00admos \u00e9 a dife\u00adren\u00e7a de tem\u00adpe\u00adra\u00adtura entre o objeto e o nosso&nbsp;corpo?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vejamos outro exemplo pr\u00e1tico: imagine uma porta de madeira com uma ma\u00e7a\u00adneta de metal. Ao encos\u00adtar a sua m\u00e3o na porta e na ma\u00e7a\u00adneta, qual delas vai estar mais&nbsp;fria?<\/p>\n\n\n\n<figure class=\"wp-block-image alignright size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"434\" height=\"266\" src=\"https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/IRtemperaturaPorta.jpeg\" alt class=\"wp-image-70199\" srcset=\"https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/IRtemperaturaPorta.jpeg 434w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/IRtemperaturaPorta-300x184.jpeg 300w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/IRtemperaturaPorta-205x126.jpeg 205w\" sizes=\"auto, (max-width: 434px) 100vw, 434px\"><figcaption class=\"wp-element-caption\">Figura 2. Regis\u00adtro da tem\u00adpe\u00adra\u00adtura de uma porta rea\u00adli\u00adzado com um ter\u00adm\u00f3\u00adgrafo, com escala de tem\u00adpe\u00adra\u00adtura \u00e0 direita. Fonte: <a rel=\"noreferrer noopener\" href=\"https:\/\/transitionbath.org\/draughts-around-outside-doors\/\" target=\"_blank\">Tran\u00adsi\u00adtion Bath<\/a>.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Temos a sen\u00adsa\u00ad\u00e7\u00e3o de que a ma\u00e7a\u00adneta est\u00e1 bem mais fria que a madeira da porta, mas nor\u00admal\u00admente est\u00e3o ambas na mesma tem\u00adpe\u00adra\u00adtura do ambi\u00adente, abaixo da tem\u00adpe\u00adra\u00adtura do nosso corpo. Na figura 2 vemos uma imagem ter\u00admo\u00adgr\u00e1\u00adfica na qual a porta e a ma\u00e7a\u00adneta est\u00e3o apro\u00adxi\u00adma\u00adda\u00admente na mesma tem\u00adpe\u00adra\u00adtura, por volta de 12 \u00b0C, assim como as paredes \u00e0 sua volta, com exce\u00e7\u00e3o das frestas que parecem mais&nbsp;frias.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Por que sen\u00adti\u00admos essa dife\u00adren\u00e7a entre esses objetos? Isto se deve \u00e0 dife\u00adren\u00e7a de com\u00adpo\u00adsi\u00ad\u00e7\u00e3o dos objetos, j\u00e1 que a ma\u00e7a\u00adneta de metal \u201crouba\u201d tem\u00adpe\u00adra\u00adtura da m\u00e3o muito mais r\u00e1pido que a porta de madeira, e como per\u00adde\u00admos mais r\u00e1pido essa tem\u00adpe\u00adra\u00adtura, temos a sen\u00adsa\u00ad\u00e7\u00e3o de que a ma\u00e7a\u00adneta \u00e9 mais fria, mesmo que esta esteja na mesma tem\u00adpe\u00adra\u00adtura que a porta!!! O con\u00adceito envol\u00advido aqui n\u00e3o \u00e9 a dife\u00adren\u00e7a de tem\u00adpe\u00adra\u00adtura, como no caso ante\u00adrior, mas a con\u00addu\u00adti\u00advi\u00addade t\u00e9rmica dos mate\u00adri\u00adais: capa\u00adci\u00addade de trocar energia t\u00e9rmica, ou \u201ctrocar temperatura\u201d.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mas e agora? Como medir a tem\u00adpe\u00adra\u00adtura se n\u00e3o podemos usar nossos sen\u00adti\u00addos? Sem per\u00adce\u00adber cami\u00adnha\u00admos para a impor\u00adt\u00e2n\u00adcia da exis\u00adt\u00ean\u00adcia de algum tipo de r\u00e9gua ou escala para medir aquilo que conhe\u00adce\u00admos como tem\u00adpe\u00adra\u00adtura. E para isso vamos entrar nas n\u00e3o sufi\u00adci\u00aden\u00adte\u00admente famosas \u201cLeis da Termodin\u00e2mica\u201d.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">A Lei Zero e a Temperatura Termodin\u00e2mica<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Cami\u00adnha\u00admos ent\u00e3o para a defi\u00adni\u00ad\u00e7\u00e3o da Lei Zero da ter\u00admo\u00addi\u00adn\u00e2\u00admica, deno\u00admi\u00adnada assim pelo cien\u00adtista <a href=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/sir-ralph-howard-fowler\/?perpage=12&amp;order=ASC&amp;orderby=title&amp;search=ralph&amp;pos=0&amp;source_list=collection&amp;ref=%2Famlef%2Fglossario%2F\">Ralph H. Fowler<\/a> em 1939. Vale aqui res\u00adsal\u00adtar que ela foi defi\u00adnida muito tempo depois das outras Leis, e devido a sua grande impor\u00adt\u00e2n\u00adcia ela foi deno\u00admi\u00adnada com a Lei Zero, pois \u00e9 a base de todo e qual\u00adquer estudo envol\u00advendo ter\u00admo\u00addi\u00adn\u00e2\u00admica! De modo formal, a Lei Zero nada mais \u00e9&nbsp;que:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><span class=\"dquo\">\u201c<\/span>Se dois sis\u00adte\u00admas est\u00e3o inde\u00adpen\u00adden\u00adte\u00admente em equi\u00adl\u00ed\u00adbrio t\u00e9rmico com um ter\u00adceiro sistema, estar\u00e3o em equi\u00adl\u00ed\u00adbrio t\u00e9rmico entre&nbsp;si.\u201d<\/p>\n<cite>Fowler &amp; Gug\u00adge\u00adnheim (1965)[1939]<\/cite><\/blockquote>\n\n\n\n<figure class=\"wp-block-image alignright size-medium is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"259\" src=\"https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/Lei-zero-da-termodinamica--300x259.png\" alt class=\"wp-image-70194\" srcset=\"https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/Lei-zero-da-termodinamica--300x259.png 300w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/Lei-zero-da-termodinamica--205x177.png 205w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/Lei-zero-da-termodinamica-.png 430w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><figcaption class=\"wp-element-caption\">Figura 3. Evo\u00adlu\u00ad\u00e7\u00e3o tem\u00adpo\u00adral da tem\u00adpe\u00adra\u00adtura de dois objetos em contato.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Para tentar tra\u00addu\u00adzir essa frase vamos pre\u00adci\u00adsar de um pouco de abs\u00adtra\u00ad\u00e7\u00e3o; acom\u00adpa\u00adnhe o raci\u00ado\u00adc\u00ed\u00adnio a seguir:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Con\u00adsi\u00addere apenas dois corpos, repre\u00adsen\u00adta\u00addos na figura 3, iso\u00adla\u00addos de qual\u00adquer fonte externa de energia, um frio (A) e outro quente (B). Jun\u00adtando os dois, podemos obser\u00advar que algo muda gra\u00addu\u00adal\u00admente, algo \u00e9 trocado entre os corpos. Ap\u00f3s um bom tempo, n\u00e3o obser\u00adva\u00admos mais trocas entre os corpos; dizemos que est\u00e3o em equi\u00adl\u00ed\u00adbrio t\u00e9rmico, com a mesma tem\u00adpe\u00adra\u00adtura. O que foi trocado entre os corpos \u00e9 Energia T\u00e9rmica.<\/p>\n\n\n\n<div style=\"height:0px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image alignleft size-medium is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"258\" src=\"https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/Lei-zero-da-termodinamica-2-1-300x258.png\" alt class=\"wp-image-70193\" srcset=\"https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/Lei-zero-da-termodinamica-2-1-300x258.png 300w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/Lei-zero-da-termodinamica-2-1-205x176.png 205w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/Lei-zero-da-termodinamica-2-1.png 431w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><figcaption class=\"wp-element-caption\">Figura 4. Evo\u00adlu\u00ad\u00e7\u00e3o tem\u00adpo\u00adral da tem\u00adpe\u00adra\u00adtura de tr\u00eas objetos em contato.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Pas\u00adsando de n\u00edvel, inclu\u00ed\u00admos um ter\u00adceiro objeto \u00a9 que faz contato com os corpos frio (A) e quente (B) como mostra a figura 4, sem que os corpos frio e quente se encos\u00adtem dire\u00adta\u00admente. Repare que com o passar do tempo, o corpo que estava frio (A) est\u00e1 em equi\u00adl\u00ed\u00adbrio t\u00e9rmico com o inter\u00adme\u00addi\u00e1\u00adrio; da mesma forma, o corpo ori\u00adgi\u00adnal\u00admente quente (B) tamb\u00e9m est\u00e1 em equi\u00adl\u00ed\u00adbrio com C. Se reti\u00adra\u00admos o ter\u00adceiro corpo e colo\u00adca\u00admos os outros (A e B) em contato direto, per\u00adce\u00adbe\u00admos que n\u00e3o h\u00e1 trocas entre eles, pois j\u00e1 est\u00e3o em equi\u00adl\u00ed\u00adbrio t\u00e9rmico. Em resumo, se C est\u00e1 em equi\u00adl\u00ed\u00adbrio t\u00e9rmico com os corpos A e B, estes est\u00e3o em equi\u00adl\u00ed\u00adbrio t\u00e9rmico entre si; existe uma rela\u00e7\u00e3o de equi\u00adva\u00adl\u00ean\u00adcia, ou um par\u00e2\u00adme\u00adtro, que cha\u00adma\u00admos Tem\u00adpe\u00adra\u00adtura. Corpos que est\u00e3o em equi\u00adl\u00ed\u00adbrio t\u00e9rmico possuem a mesma Temperatura.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Isso \u00e9 a Lei Zero da Ter\u00admo\u00addi\u00adn\u00e2\u00admica! At\u00e9 que \u00e9 uma situ\u00ada\u00ad\u00e7\u00e3o intui\u00adtiva, n\u00e3o con\u00adcorda? Ent\u00e3o por que diabos algo t\u00e3o \u00f3bvio \u00e9 con\u00adsi\u00adde\u00adrado a Lei fun\u00adda\u00admen\u00adtal para todo o desen\u00advol\u00advi\u00admento da Ter\u00admo\u00addi\u00adn\u00e2\u00admica? Pois bem, as coisas \u00f3bvias tamb\u00e9m pre\u00adci\u00adsam ser des\u00adcri\u00adtas, e \u00e9 esta a lei que define Tem\u00adpe\u00adra\u00adtura. Sabendo que podemos repre\u00adsen\u00adtar esse par\u00e2\u00adme\u00adtro em alguma Escala de Tem\u00adpe\u00adra\u00adtura, inde\u00adpen\u00addente dos corpos envol\u00advi\u00addos, podemos criar um ins\u00adtru\u00admento para com\u00adpa\u00adrar as \u201cmedi\u00ad\u00e7\u00f5es t\u00e9r\u00admi\u00adcas\u201d a essas escalas, ou seja, um term\u00f4\u00adme\u00adtro (do grego Therme, calor, e Metron, medida). Obser\u00advando corpos que marquem a mesma tem\u00adpe\u00adra\u00adtura em um term\u00f4\u00adme\u00adtro, podemos garan\u00adtir que eles esta\u00adriam em equi\u00adl\u00ed\u00adbrio t\u00e9rmico entre si, caso esti\u00adves\u00adsem em contato. Muito mais do que con\u00adsequ\u00ean\u00adcias pr\u00e1\u00adti\u00adcas, a Lei Zero tem impli\u00adca\u00ad\u00e7\u00f5es filos\u00f3ficas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00e3o conhe\u00adce\u00admos um Uni\u00adverso ou con\u00adtexto que n\u00e3o res\u00adpeite essa Lei, ent\u00e3o \u00e9 dif\u00edcil falar das impli\u00adca\u00ad\u00e7\u00f5es de uma quebra dela. Podemos apenas supor que, caso a Lei Zero n\u00e3o fosse ver\u00adda\u00addeira, seria impos\u00ads\u00ed\u00advel ter um equi\u00adpa\u00admento padro\u00adni\u00adzado para medir tem\u00adpe\u00adra\u00adtura (term\u00f4\u00adme\u00adtro) e o pr\u00f3prio con\u00adceito de tem\u00adpe\u00adra\u00adtura n\u00e3o faria sentido! N\u00e3o faz sentido ter uma escala de refe\u00adr\u00ean\u00adcia se as medidas pre\u00adci\u00adsam ser rea\u00adli\u00adza\u00addas caso a caso, e n\u00e3o refe\u00adren\u00adtes a uma escala fixa.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sob a \u00f3tica da Ter\u00admo\u00addi\u00adn\u00e2\u00admica, isso \u00e9 Tem\u00adpe\u00adra\u00adtura: uma escala para medir parte da Energia de um sistema.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A forma como a Tem\u00adpe\u00adra\u00adtura se rela\u00adci\u00adona com outras gran\u00adde\u00adzas ser\u00e1 assunto para outros artigos.<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h5 class=\"wp-block-heading has-text-align-right\">Maria Eduarda Bell\u00f3 e Gabriel Cury Perrone \/ Equipe AMLEF&nbsp;2023<\/h5>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-4adc9cd0 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\">\n\n\n\n<h2 class=\"wp-block-heading\">Refer\u00eancias:<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.if.ufrgs.br\/~dschulz\/web\/temperatura.htm\">Tem\u00adpe\u00adra\u00adtura<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.metroquality.com.br\/pastas\/artigo\/OID3078712\/HistoriaMedicaoTemperatura.pdf\">His\u00adt\u00f3\u00adria da Temperatura.pdf<\/a><\/li>\n\n\n\n<li>NUSSENZVEIG, H. Moys\u00e9s, Curso de F\u00edsica B\u00e1sica 2. Edi\u00e7\u00e3o: 5.ed. Cidade: S\u00e3o Paulo, Edgard Bl\u00fccher, 2014.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Defi\u00adnindo em termos t\u00e9c\u00adni\u00adcos, a tem\u00adpe\u00adra\u00adtura \u00e9 \u201cum par\u00e2\u00adme\u00adtro f\u00edsico pro\u00adpor\u00adci\u00ado\u00adnal \u00e0 energia t\u00e9rmica do sistema\u201d. Bas\u00adtante abs\u00adtrato, n\u00e3o con\u00adcorda? Mas como um con\u00adceito t\u00e3o usual, que ouvimos o tempo todo, pode ser t\u00e3o com\u00adplexo? Aqui vamos tentar tra\u00addu\u00adzir o que isso quer&nbsp;dizer.<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_editorskit_title_hidden":false,"_editorskit_reading_time":0,"_editorskit_is_block_options_detached":false,"_editorskit_block_options_position":"{}","wp_typography_post_enhancements_disabled":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[582,583],"tags":[586,585,500,504],"class_list":["post-70173","post","type-post","status-publish","format-standard","hentry","category-expo2024-o-acervo-contra-ataca","category-exposicoes","tag-expo2022","tag-exposicao","tag-metrologia","tag-termodinamica"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Termodin\u00e2mica: Lei Zero - definindo Temperatura - Museu dos Laborat\u00f3rios de Ensino de F\u00edsica - Em Transi\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"Temperatura \u00e9 \u201cum par\u00e2metro proporcional \u00e0 energia do sistema\u201d. 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O qu\u00ea?!?!?! Vamos traduzir essa frase e explicar a Lei Zero da Termodin\u00e2mica.","breadcrumb":{"@id":"https:\/\/www.ufrgs.br\/amlef\/2023\/10\/20\/a-lei-zero-da-termodinamica-definindo-temperatura\/#breadcrumb"},"inLanguage":"pt-BR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.ufrgs.br\/amlef\/2023\/10\/20\/a-lei-zero-da-termodinamica-definindo-temperatura\/"]}]},{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/www.ufrgs.br\/amlef\/2023\/10\/20\/a-lei-zero-da-termodinamica-definindo-temperatura\/#primaryimage","url":"https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/kisspng-lightning-weather-icon-blue-weather-icon-5a901702ab59c4.5840305115193925147019.png","contentUrl":"https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2023\/10\/kisspng-lightning-weather-icon-blue-weather-icon-5a901702ab59c4.5840305115193925147019.png","width":1142,"height":1128},{"@type":"BreadcrumbList","@id":"https:\/\/www.ufrgs.br\/amlef\/2023\/10\/20\/a-lei-zero-da-termodinamica-definindo-temperatura\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"In\u00edcio","item":"https:\/\/www.ufrgs.br\/amlef\/"},{"@type":"ListItem","position":2,"name":"Termodin\u00e2mica: Lei Zero &#8211; definindo Temperatura"}]},{"@type":"WebSite","@id":"https:\/\/www.ufrgs.br\/amlef\/#website","url":"https:\/\/www.ufrgs.br\/amlef\/","name":"Museu dos Laborat\u00f3rios de Ensino de F\u00edsica - Em Transi\u00e7\u00e3o","description":"Acervo Museol\u00f3gico dos Laborat\u00f3rios de Ensino de F\u00edsica","publisher":{"@id":"https:\/\/www.ufrgs.br\/amlef\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.ufrgs.br\/amlef\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"pt-BR"},{"@type":"Organization","@id":"https:\/\/www.ufrgs.br\/amlef\/#organization","name":"Museu dos Laborat\u00f3rios de Ensino de F\u00edsica - Em Transi\u00e7\u00e3o","url":"https:\/\/www.ufrgs.br\/amlef\/","logo":{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/www.ufrgs.br\/amlef\/#\/schema\/logo\/image\/","url":"https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/07\/LOGO_CABECALHO.jpg","contentUrl":"https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/07\/LOGO_CABECALHO.jpg","width":2065,"height":354,"caption":"Museu dos Laborat\u00f3rios de Ensino de F\u00edsica - Em Transi\u00e7\u00e3o"},"image":{"@id":"https:\/\/www.ufrgs.br\/amlef\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/AMLEF.IF.UFRGS","https:\/\/www.instagram.com\/amlef.ufrgs\/"]},{"@type":"Person","@id":"https:\/\/www.ufrgs.br\/amlef\/#\/schema\/person\/57338e4fe9069c01e42e64f2a7f2d559","name":"Maria Eduarda de Carvalho Bell\u00f3","image":{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/www.ufrgs.br\/amlef\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/ab000a15a838c1a7fbf87e9b1ea8d823a88907b60f7be8ce9bc103380b4c0101?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/ab000a15a838c1a7fbf87e9b1ea8d823a88907b60f7be8ce9bc103380b4c0101?s=96&d=mm&r=g","caption":"Maria Eduarda de Carvalho Bell\u00f3"},"description":"Astrof\u00edsica UFRGS - 2021\/1 Taubat\u00e9 - SP","url":"https:\/\/www.ufrgs.br\/amlef\/author\/maria_bello\/"}]}},"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.ufrgs.br\/amlef\/wp-json\/wp\/v2\/posts\/70173","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ufrgs.br\/amlef\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ufrgs.br\/amlef\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ufrgs.br\/amlef\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ufrgs.br\/amlef\/wp-json\/wp\/v2\/comments?post=70173"}],"version-history":[{"count":45,"href":"https:\/\/www.ufrgs.br\/amlef\/wp-json\/wp\/v2\/posts\/70173\/revisions"}],"predecessor-version":[{"id":72718,"href":"https:\/\/www.ufrgs.br\/amlef\/wp-json\/wp\/v2\/posts\/70173\/revisions\/72718"}],"wp:attachment":[{"href":"https:\/\/www.ufrgs.br\/amlef\/wp-json\/wp\/v2\/media?parent=70173"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ufrgs.br\/amlef\/wp-json\/wp\/v2\/categories?post=70173"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ufrgs.br\/amlef\/wp-json\/wp\/v2\/tags?post=70173"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}