{"id":45843,"date":"2019-10-20T07:53:59","date_gmt":"2019-10-20T06:53:59","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/quest-ce-que-la-temperature-de-distinction-la-chaleur-et-lenergie-interne-definition\/"},"modified":"2020-02-26T12:55:12","modified_gmt":"2020-02-26T11:55:12","slug":"quest-ce-que-la-temperature-de-distinction-la-chaleur-et-lenergie-interne-definition","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-que-la-temperature-de-distinction-la-chaleur-et-lenergie-interne-definition\/","title":{"rendered":"Qu&#8217;est-ce que la temp\u00e9rature de distinction, la chaleur et l&#8217;\u00e9nergie interne &#8211; D\u00e9finition"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-clearfix\">La temp\u00e9rature est li\u00e9e aux \u00e9nergies cin\u00e9tiques des mol\u00e9cules.\u00a0L&#8217;\u00e9nergie interne fait r\u00e9f\u00e9rence \u00e0 l&#8217;\u00e9nergie totale de toutes les mol\u00e9cules.\u00a0La chaleur est la quantit\u00e9 de flux d&#8217;\u00e9nergie.\u00a0G\u00e9nie thermique<\/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>Distinguer la temp\u00e9rature, la chaleur et l&#8217;\u00e9nergie interne<\/h2>\n<p>En utilisant la th\u00e9orie cin\u00e9tique, une distinction claire entre ces trois propri\u00e9t\u00e9s peut \u00eatre faite.<\/p>\n<ul>\n<li><a title=\"Quelle est la temp\u00e9rature - Physique\" href=\"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-que-la-temperature-physique-definition\/\"><strong>La temp\u00e9rature<\/strong><\/a>\u00a0est li\u00e9e aux<a title=\"Quelle est l'\u00e9nergie cin\u00e9tique\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/what-is-energy-physics\/what-is-kinetic-energy\/\"><strong>\u00a0\u00e9nergies cin\u00e9tiques<\/strong><\/a>\u00a0des mol\u00e9cules d&#8217;un mat\u00e9riau.\u00a0C&#8217;est l&#8217;\u00e9nergie cin\u00e9tique moyenne des mol\u00e9cules individuelles.<\/li>\n<li><strong>L&#8217;\u00e9nergie interne<\/strong>\u00a0fait r\u00e9f\u00e9rence \u00e0 l&#8217;\u00e9nergie totale de toutes les mol\u00e9cules de l&#8217;objet.\u00a0C&#8217;est donc une\u00a0<strong>propri\u00e9t\u00e9 \u00e9tendue<\/strong>\u00a0, donc lorsque deux lingots d&#8217;acier chauds de masse \u00e9gale peuvent avoir la m\u00eame temp\u00e9rature, mais que deux d&#8217;entre eux ont deux fois plus d&#8217;\u00e9nergie interne que l&#8217;un d&#8217;entre eux.<\/li>\n<li>Enfin, la\u00a0<strong>chaleur<\/strong>\u00a0est la quantit\u00e9 d\u2019\u00e9nergie qui circule spontan\u00e9ment d\u2019un corps \u00e0 l\u2019autre en raison de leur diff\u00e9rence de temp\u00e9rature.<\/li>\n<\/ul>\n<p>Il faut l&#8217;ajouter, lorsqu&#8217;il\u00a0existe\u00a0une\u00a0<strong>diff\u00e9rence de temp\u00e9rature<\/strong>\u00a0, la chaleur circule spontan\u00e9ment\u00a0<strong>du syst\u00e8me le plus chaud vers le syst\u00e8me le plus froid<\/strong>\u00a0.\u00a0Ainsi, si un cube d&#8217;acier de 5 kg \u00e0 100 \u00b0 C est mis en contact avec un cube d&#8217;acier de 500 kg \u00e0 20 \u00b0 C, la chaleur s&#8217;\u00e9coule du cube \u00e0 300 \u00b0 C vers le cube \u00e0 20 \u00b0 C alors que l&#8217;\u00e9nergie interne du cube de 20 \u00b0 C est beaucoup plus grande car il y en a beaucoup plus.<\/p>\n<p>L&#8217;\u00a0<a title=\"\u00c9quilibre thermique\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/thermodynamic-properties\/what-is-temperature-physics\/thermal-equilibrium\/\"><strong>\u00e9quilibre thermodynamique<\/strong><\/a>\u00a0est un concept particuli\u00e8rement important\u00a0.\u00a0En g\u00e9n\u00e9ral, lorsque deux objets sont mis en\u00a0<strong>contact thermique<\/strong>\u00a0, de la\u00a0<strong>chaleur circule<\/strong>\u00a0entre eux\u00a0<strong>jusqu&#8217;\u00e0 ce<\/strong>\u00a0qu&#8217;ils\u00a0<strong>s&#8217;\u00e9quilibrent<\/strong>\u00a0.<\/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\">\n<div class=\"su-accordion\">\n<div class=\"su-spoiler su-spoiler-style-default su-spoiler-icon-arrow\" data-anchor=\"References\">\n<div class=\"su-spoiler-content su-clearfix\">\n<p>&nbsp;<\/p>\n<\/div>\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>Cet article est bas\u00e9 sur la traduction automatique de l&#8217;article original en anglais. Pour plus d&#8217;informations, voir l&#8217;article en anglais. Pouvez vous nous aider Si vous souhaitez corriger la traduction, envoyez-la \u00e0 l&#8217;adresse: translations@nuclear-power.com ou remplissez le formulaire de traduction en ligne. Nous appr\u00e9cions votre aide, nous mettrons \u00e0 jour la traduction le plus rapidement possible. Merci<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>La temp\u00e9rature est li\u00e9e aux \u00e9nergies cin\u00e9tiques des mol\u00e9cules.\u00a0L&#8217;\u00e9nergie interne fait r\u00e9f\u00e9rence \u00e0 l&#8217;\u00e9nergie totale de toutes les mol\u00e9cules.\u00a0La chaleur est la quantit\u00e9 de flux d&#8217;\u00e9nergie.\u00a0G\u00e9nie thermique Distinguer la temp\u00e9rature, la chaleur et l&#8217;\u00e9nergie interne En utilisant la th\u00e9orie cin\u00e9tique, une distinction claire entre ces trois propri\u00e9t\u00e9s peut \u00eatre faite. La temp\u00e9rature\u00a0est li\u00e9e aux\u00a0\u00e9nergies cin\u00e9tiques\u00a0des &#8230; <a title=\"Qu&#8217;est-ce que la temp\u00e9rature de distinction, la chaleur et l&#8217;\u00e9nergie interne &#8211; D\u00e9finition\" class=\"read-more\" href=\"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-que-la-temperature-de-distinction-la-chaleur-et-lenergie-interne-definition\/\" aria-label=\"En savoir plus sur Qu&#8217;est-ce que la temp\u00e9rature de distinction, la chaleur et l&#8217;\u00e9nergie interne &#8211; D\u00e9finition\">Lire la suite<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[8],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Qu&#039;est-ce que la temp\u00e9rature de distinction, la chaleur et l&#039;\u00e9nergie interne - D\u00e9finition<\/title>\n<meta name=\"description\" content=\"La temp\u00e9rature est li\u00e9e aux \u00e9nergies cin\u00e9tiques des mol\u00e9cules. 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