{"id":45090,"date":"2019-10-17T11:18:21","date_gmt":"2019-10-17T10:18:21","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/quest-ce-quun-processus-isochorique-processus-isometrique-definition\/"},"modified":"2020-02-20T14:47:31","modified_gmt":"2020-02-20T13:47:31","slug":"quest-ce-quun-processus-isochorique-processus-isometrique-definition","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-quun-processus-isochorique-processus-isometrique-definition\/","title":{"rendered":"Qu&#8217;est-ce qu&#8217;un processus isochorique &#8211; Processus isom\u00e9trique &#8211; D\u00e9finition"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-clearfix\">Processus isochorique &#8211; Processus isom\u00e9trique. Un processus isochore est un processus thermodynamique dans lequel le volume du syst\u00e8me ferm\u00e9 reste constant (V = const). G\u00e9nie thermique<\/div>\n<\/div>\n<div><\/div>\n<div><\/div>\n<div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights  lgc-first\">\n<div class=\"inside-grid-column\">\n<h2><span>Processus isochorique &#8211; Processus isom\u00e9trique<\/span><\/h2>\n<p><span>Un\u00a0<\/span><strong><span>processus isochore<\/span><\/strong><span>\u00a0est un processus thermodynamique, dans lequel le\u00a0<\/span><strong><span>volume<\/span><\/strong><span>\u00a0du syst\u00e8me ferm\u00e9\u00a0<\/span><strong><span>reste constant<\/span><\/strong><span>\u00a0(V = const).\u00a0Il d\u00e9crit le comportement du gaz \u00e0 l&#8217;int\u00e9rieur du conteneur, qui ne peut pas \u00eatre d\u00e9form\u00e9.\u00a0\u00c9tant donn\u00e9 que le volume reste constant, le transfert de chaleur dans ou hors du syst\u00e8me ne fonctionne pas avec le\u00a0<\/span><a title=\"Travaux p\u0394V - Travaux aux limites et travaux V\u0394p\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/laws-of-thermodynamics\/first-law-of-thermodynamics\/p%ce%b4v-work-boundary-work-and-v%ce%b4p-work\/\"><span>p\u2206V<\/span><\/a><span>\u00a0, mais modifie uniquement l&#8217;\u00a0<\/span><a href=\"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-que-lenergie-interne-energie-thermique-definition\/\"><strong><span>\u00e9nergie interne<\/span><\/strong><\/a><span>\u00a0(la temp\u00e9rature) du syst\u00e8me.<\/span><\/p>\n<p><span>Pour un gaz parfait et un\u00a0<\/span><strong><span>processus polytropique<\/span><\/strong><span>\u00a0, le cas\u00a0<strong><em>n\u00a0<\/em><\/strong><strong><em>\u279d\u00a0<\/em><\/strong><strong><em>\u221e<\/em><\/strong>\u00a0correspond \u00e0 un\u00a0<strong>processus isochore (volume constant)<\/strong>\u00a0.\u00a0Contrairement au\u00a0<a title=\"Processus adiabatique\" href=\"https:\/\/www.thermal-engineering.org\/fr\/quel-est-le-processus-adiabatique-definition\/\">processus adiabatique<\/a>\u00a0, dans lequel\u00a0<strong><em>n =<\/em><\/strong><em>\u00a0\u00a0et\u00a0<\/em><em>un syst\u00e8me n&#8217;\u00e9change pas de chaleur avec son environnement (Q = 0; W\u00a0<\/em><em>\u2260 0\u00a0<\/em><em>)\u00a0<\/em><em>, dans un processus isochore, il y a un changement dans l&#8217;\u00e9nergie interne (due \u00e0 \u2206T \u2260 0) et donc\u00a0<\/em><em>\u0394U\u00a0<\/em><em>\u2260\u00a0<\/em><em>0 (pour les gaz parfaits) et (Q\u00a0<\/em><em>\u2260\u00a0<\/em><em>0; W\u00a0<\/em><em>= 0\u00a0<\/em><em>).<\/em><\/span><strong>\u00a0<\/strong><em>\u00a0<\/em><\/p>\n<p><span>Dans l&#8217;ing\u00e9nierie des\u00a0<\/span><strong><span>moteurs \u00e0 combustion interne<\/span><\/strong><span>\u00a0, les processus isochoriques sont tr\u00e8s importants pour leurs cycles thermodynamiques (cycle Otto et Diesel), donc l&#8217;\u00e9tude de ce processus est cruciale pour l&#8217;ing\u00e9nierie automobile.<\/span><\/p>\n<div class=\"su-spacer\"><\/div>\n<h2><span>Processus isochorique et premi\u00e8re loi<\/span><\/h2>\n<p><span>La forme classique de la\u00a0<\/span><a title=\"Premi\u00e8re loi de la thermodynamique\" href=\"https:\/\/www.thermal-engineering.org\/fr\/quelle-est-la-premiere-loi-de-la-thermodynamique-definition\/\"><span>premi\u00e8re loi de la thermodynamique<\/span><\/a><span>\u00a0est l&#8217;\u00e9quation suivante:<\/span><\/p>\n<p><strong><span>dU = dQ &#8211; dW<\/span><\/strong><\/p>\n<p><span>Dans cette \u00e9quation, dW est \u00e9gal \u00e0\u00a0<\/span><strong><span>dW = pdV<\/span><\/strong><span>\u00a0et est connu comme le\u00a0<\/span><a title=\"Travaux p\u0394V - Travaux aux limites et travaux V\u0394p\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/laws-of-thermodynamics\/first-law-of-thermodynamics\/p%ce%b4v-work-boundary-work-and-v%ce%b4p-work\/\"><span>travail<\/span><\/a><span>\u00a0aux\u00a0<a title=\"Travaux p\u0394V - Travaux aux limites et travaux V\u0394p\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/laws-of-thermodynamics\/first-law-of-thermodynamics\/p%ce%b4v-work-boundary-work-and-v%ce%b4p-work\/\">limites<\/a>\u00a0.\u00a0Alors:<\/span><\/p>\n<p><strong><span>dU = dQ &#8211; pdV<\/span><\/strong><\/p>\n<p><span>Dans le processus isochore et le gaz parfait, toute la chaleur ajout\u00e9e au syst\u00e8me sera utilis\u00e9e pour augmenter l&#8217;\u00e9nergie interne.<\/span><\/p>\n<p><strong><span>Processus isochorique (pdV = 0):<\/span><\/strong><\/p>\n<p><strong><span>dU = dQ \u00a0\u00a0\u00a0\u00a0<\/span><\/strong><em><span>(pour le gaz parfait)<\/span><\/em><\/p>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights  lgc-last\">\n<div class=\"inside-grid-column\">\n<figure id=\"attachment_17463\" class=\"wp-caption alignleft\" aria-describedby=\"caption-attachment-17463\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Isochoric-process-main-characteristics.png\"><img loading=\"lazy\" class=\"size-full wp-image-17463 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Isochoric-process-main-characteristics.png\" alt=\"Processus isochorique - principales caract\u00e9ristiques\" width=\"382\" height=\"468\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Isochoric-process-main-characteristics.png\" \/><\/a><figcaption id=\"caption-attachment-17463\" class=\"wp-caption-text\"><span>Processus isochorique &#8211; principales caract\u00e9ristiques<\/span><\/figcaption><\/figure>\n<figure id=\"attachment_17321\" class=\"wp-caption alignleft\" aria-describedby=\"caption-attachment-17321\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Guy-Lussac-Law.png\"><img loading=\"lazy\" class=\"size-full wp-image-17321 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Guy-Lussac-Law.png\" alt=\"Loi de Guy-Lussac\" width=\"274\" height=\"301\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Guy-Lussac-Law.png\" \/><\/a><figcaption id=\"caption-attachment-17321\" class=\"wp-caption-text\"><span>Pour une masse fixe de gaz \u00e0 volume constant, la pression est directement proportionnelle \u00e0 la temp\u00e9rature Kelvin.<\/span><\/figcaption><\/figure>\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-spacer\"><\/div>\n<h2><span>Processus isochorique &#8211; \u00c9quation du gaz parfait<\/span><\/h2>\n<p><span>Voir aussi:\u00a0<\/span><a title=\"Qu'est-ce que le gaz parfait\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/ideal-gas-law\/what-is-ideal-gas\/\"><span>Qu&#8217;est-ce qu&#8217;un gaz parfait<\/span><\/a><\/p>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/isochoric-process-pV-Diagram.png\"><img loading=\"lazy\" class=\"alignright size-medium wp-image-17464 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/isochoric-process-pV-Diagram-300x247.png\" alt=\"processus isochore - Diagramme pV\" width=\"300\" height=\"247\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/isochoric-process-pV-Diagram-300x247.png\" \/><\/a><span>Supposons un\u00a0<\/span><strong><span>apport de chaleur isochore<\/span><\/strong><span>\u00a0dans un gaz parfait.\u00a0Dans un\u00a0<\/span><a title=\"Qu'est-ce que le gaz parfait\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/ideal-gas-law\/what-is-ideal-gas\/\"><span>gaz parfait<\/span><\/a><span>\u00a0, les mol\u00e9cules n&#8217;ont pas de volume et n&#8217;interagissent pas.\u00a0Selon la\u00a0<\/span><a title=\"Loi du gaz parfait\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/ideal-gas-law\/\"><span>loi du gaz parfait<\/span><\/a><span>\u00a0, la\u00a0<\/span><a title=\"Qu'est-ce que la pression - Physique\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/thermodynamic-properties\/what-is-pressure-physics\/\"><span>pression<\/span><\/a><span>\u00a0varie lin\u00e9airement avec la\u00a0<\/span><a title=\"Qu'est-ce que la temp\u00e9rature - Physique\" href=\"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-que-la-temperature-physique-definition\/\"><span>temp\u00e9rature<\/span><\/a><span>\u00a0et la quantit\u00e9, et inversement avec le\u00a0<\/span><a title=\"Qu'est-ce que le volume - Physique\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/thermodynamic-properties\/what-is-volume-physics\/\"><span>volume<\/span><\/a><span>\u00a0.<\/span><\/p>\n<p><strong><em><span>pV = nRT<\/span><\/em><\/strong><\/p>\n<p><span>o\u00f9:<\/span><\/p>\n<ul>\n<li><em><span>p<\/span><\/em><span>\u00a0est la pression absolue du gaz<\/span><\/li>\n<li><em><span>n<\/span><\/em><span>\u00a0est la quantit\u00e9 de substance<\/span><\/li>\n<li><em><span>T<\/span><\/em><span>\u00a0est la temp\u00e9rature absolue<\/span><\/li>\n<li><em><span>V<\/span><\/em><span>\u00a0est le volume<\/span><\/li>\n<li><em><span>R<\/span><\/em><span>\u00a0\u00a0est la constante de gaz parfaite ou universelle, \u00e9gale au produit de la constante de Boltzmann et de la constante d&#8217;Avogadro,<\/span><\/li>\n<\/ul>\n<p><span>Dans cette \u00e9quation, le symbole R est une constante appel\u00e9e constante de\u00a0<\/span><strong><span>gaz universelle<\/span><\/strong><span>\u00a0qui a la m\u00eame valeur pour tous les gaz, \u00e0 savoir R = 8,31 J \/ mol K.<\/span><\/p>\n<p><span>Le processus isochore peut s&#8217;exprimer avec la loi du gaz parfait comme:<\/span><\/p>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/isochoric-process-equation-1.png\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-17465 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/isochoric-process-equation-1.png\" alt=\"processus isochore - \u00e9quation 1\" width=\"138\" height=\"52\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/isochoric-process-equation-1.png\" \/><\/a><\/p>\n<p><span>ou<\/span><\/p>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/isochoric-process-equation-2.png\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-17466 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/isochoric-process-equation-2.png\" alt=\"processus isochore - \u00e9quation 2\" width=\"86\" height=\"66\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/isochoric-process-equation-2.png\" \/><\/a><\/p>\n<p><span>Sur un\u00a0<\/span><strong><span>diagramme pV<\/span><\/strong><span>\u00a0, le processus se produit le long d&#8217;une ligne horizontale qui a l&#8217;\u00e9quation V = constante.<\/span><\/p>\n<p><strong><span>Le travail pression-volume<\/span><\/strong><span>\u00a0par le syst\u00e8me ferm\u00e9 est d\u00e9fini comme:<\/span><\/p>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/pV-work-isobaric-process.png?a34b7f\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-17436 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/pV-work-isobaric-process.png?a34b7f\" alt=\"travail PV - processus isobare\" width=\"157\" height=\"99\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/pV-work-isobaric-process.png?a34b7f\" \/><\/a><\/p>\n<p><span>Le processus \u00e9tant\u00a0<\/span><strong><span>isochore<\/span><\/strong><span>\u00a0,\u00a0<\/span><strong><em><span>dV<\/span><\/em><span>\u00a0= 0<\/span><\/strong><span>\u00a0, le travail\u00a0<\/span><strong><span>pression-volume est \u00e9gal \u00e0 z\u00e9ro<\/span><\/strong><span>\u00a0.\u00a0Selon le mod\u00e8le de gaz parfait, l&#8217;\u00e9nergie interne peut \u00eatre calcul\u00e9e par:<\/span><\/p>\n<p><em><span>\u2206U = mc\u00a0<\/span><\/em><em><sub><span>v<\/span><\/sub><\/em><em><span>\u00a0\u2206T<\/span><\/em><\/p>\n<p><span>lorsque la propri\u00e9t\u00e9\u00a0<\/span><strong><span>c\u00a0<\/span><\/strong><strong><sub><span>v<\/span><\/sub><\/strong><strong><span>\u00a0(J \/ mol K)<\/span><\/strong><span>\u00a0est appel\u00e9e\u00a0<\/span><strong><span>chaleur sp\u00e9cifique<\/span><\/strong><span>\u00a0(ou\u00a0<\/span><strong><span>capacit\u00e9 calorifique<\/span><\/strong><span>\u00a0) \u00e0 volume constant car, dans certaines conditions sp\u00e9ciales (volume constant), elle relie le changement de temp\u00e9rature d&#8217;un syst\u00e8me \u00e0 la quantit\u00e9 d&#8217;\u00e9nergie ajout\u00e9e par transfert de chaleur.<\/span><\/p>\n<p><span>Puisqu&#8217;il n&#8217;y a aucun travail effectu\u00e9 par ou sur le syst\u00e8me, la\u00a0<\/span><strong><span>premi\u00e8re loi de la thermodynamique<\/span><\/strong><span>\u00a0dicte\u00a0<\/span><em><span>\u2206U = \u2206Q.\u00a0<\/span><\/em><span>Donc:<\/span><\/p>\n<p><span>Q = \u00a0\u00a0<\/span><em><span>mc\u00a0<\/span><\/em><em><sub><span>v<\/span><\/sub><\/em><em><span>\u00a0\u2206T<\/span><\/em><\/p>\n<p><span>Voir aussi:\u00a0<\/span><a title=\"Chaleur sp\u00e9cifique \u00e0 volume et pression constants\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/ideal-gas-law\/specific-heat-constant-volume-pressure\/\"><span>Chaleur sp\u00e9cifique \u00e0 volume constant et pression constante<\/span><\/a><\/p>\n<p><span>Voir aussi:\u00a0<\/span><a title=\"La relation de Mayer - La formule de Mayer\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/ideal-gas-law\/mayers-relation-mayers-formula\/\"><span>formule de Mayer<\/span><\/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\">\n<div class=\"su-spacer\"><\/div>\n<h2><span>Loi de Guy-Lussac<\/span><\/h2>\n<p><a title=\"Loi de Guy-Lussac\" href=\"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-que-la-loi-gay-lussac-definition\/\"><strong><span>La loi de Guy-Lussac<\/span><\/strong><\/a><span>\u00a0ou la<a title=\"Loi de Guy-Lussac\" href=\"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-que-la-loi-gay-lussac-definition\/\"><strong>\u00a0loi sur<\/strong><\/a>\u00a0la<\/span><strong><span>\u00a0pression, l&#8217;\u00a0<\/span><\/strong><span>\u00a0une des lois sur le gaz, stipule que:<\/span><\/p>\n<p><em><span>Pour une masse fixe de gaz \u00e0 volume constant, la pression est directement proportionnelle \u00e0 la temp\u00e9rature Kelvin.<\/span><\/em><\/p>\n<p><span>Cela signifie que, par exemple, si vous doublez la temp\u00e9rature, vous doublerez la pression.\u00a0Si vous divisez par deux la temp\u00e9rature, vous r\u00e9duisez de moiti\u00e9 la pression.<\/span><\/p>\n<p><span>Vous pouvez exprimer cela math\u00e9matiquement comme:<\/span><\/p>\n<p><strong><em><span>p = constant.\u00a0T<\/span><\/em><\/strong><\/p>\n<p><span>Oui, il semble \u00eatre identique au\u00a0<\/span><strong><span>processus isochore<\/span><\/strong><span>\u00a0du gaz parfait.\u00a0Ces r\u00e9sultats sont parfaitement coh\u00e9rents avec la loi du gaz parfait, qui d\u00e9termine que la constante est \u00e9gale \u00e0 nR \/ V.\u00a0Si vous r\u00e9organisez l&#8217;\u00e9quation pV = nRT en divisant les deux c\u00f4t\u00e9s par V, vous obtiendrez:<\/span><\/p>\n<p><strong><em><span>p = nR \/ V.\u00a0T<\/span><\/em><\/strong><\/p>\n<p><span>o\u00f9 nR \/ V est constant et:<\/span><\/p>\n<ul>\n<li><em><span>p<\/span><\/em><span>\u00a0est la pression absolue du gaz<\/span><\/li>\n<li><em><span>n<\/span><\/em><span>\u00a0est la quantit\u00e9 de substance<\/span><\/li>\n<li><em><span>T<\/span><\/em><span>\u00a0est la temp\u00e9rature absolue<\/span><\/li>\n<li><em><span>V<\/span><\/em><span>\u00a0est le volume<\/span><\/li>\n<li><em><span>R<\/span><\/em><span>\u00a0\u00a0est la constante de gaz parfaite ou universelle, \u00e9gale au produit de la constante de Boltzmann et de la constante d&#8217;Avogadro<\/span><\/li>\n<\/ul>\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-spacer\"><\/div>\n<h2><span>Exemple de processus isochorique &#8211; Addition de chaleur isochorique<\/span><\/h2>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Otto-Cycle-PV-Diagram.png\"><img loading=\"lazy\" class=\"alignright size-medium wp-image-17461 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Otto-Cycle-PV-Diagram-300x245.png\" alt=\"Cycle d'Otto - Diagramme PV\" width=\"300\" height=\"245\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Otto-Cycle-PV-Diagram-300x245.png\" \/><\/a><span>Supposons le\u00a0<\/span><strong><span>cycle Otto<\/span><\/strong><span>\u00a0, qui est l&#8217;un des\u00a0<\/span><strong><span>cycles thermodynamiques<\/span><\/strong><span>\u00a0les plus courants\u00a0que l&#8217;on puisse trouver dans les\u00a0<\/span><strong><span>moteurs d&#8217;automobiles<\/span><\/strong><span>\u00a0.\u00a0Ce cycle suppose que l&#8217;apport de chaleur se produit instantan\u00e9ment (\u00a0<\/span><strong><span>entre 2 \u2192 3<\/span><\/strong><span>\u00a0) alors que le piston est au point mort haut.\u00a0Ce processus est consid\u00e9r\u00e9 comme isochore.<\/span><\/p>\n<p><span>Les processus 2 \u2192 3 et 4 \u2192 1 sont des\u00a0<\/span><strong><span>processus isochoriques<\/span><\/strong><span>\u00a0, dans lesquels la chaleur est transf\u00e9r\u00e9e dans le syst\u00e8me entre 2 \u2192 3 et hors du syst\u00e8me entre 4 \u2192 1. Pendant ces processus, aucun travail n&#8217;est effectu\u00e9 sur le syst\u00e8me ou extrait du syst\u00e8me .\u00a0Le processus isochore 2 \u2192 3 est cens\u00e9 repr\u00e9senter l&#8217;inflammation du m\u00e9lange carburant-air et la combustion rapide qui en r\u00e9sulte.<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<div><\/div>\n<div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights lgc-first\">\n<div class=\"inside-grid-column\">\n<div class=\"su-spacer\"><\/div>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights lgc-last\">\n<div class=\"inside-grid-column\">\n<figure id=\"attachment_17463\" class=\"wp-caption alignleft\" aria-describedby=\"caption-attachment-17463\"><figcaption id=\"caption-attachment-17463\" class=\"wp-caption-text\">&#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<\/figcaption><\/figure>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Processus isochorique &#8211; Processus isom\u00e9trique. Un processus isochore est un processus thermodynamique dans lequel le volume du syst\u00e8me ferm\u00e9 reste constant (V = const). G\u00e9nie thermique Processus isochorique &#8211; Processus isom\u00e9trique Un\u00a0processus isochore\u00a0est un processus thermodynamique, dans lequel le\u00a0volume\u00a0du syst\u00e8me ferm\u00e9\u00a0reste constant\u00a0(V = const).\u00a0Il d\u00e9crit le comportement du gaz \u00e0 l&#8217;int\u00e9rieur du conteneur, qui ne &#8230; <a title=\"Qu&#8217;est-ce qu&#8217;un processus isochorique &#8211; Processus isom\u00e9trique &#8211; D\u00e9finition\" class=\"read-more\" href=\"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-quun-processus-isochorique-processus-isometrique-definition\/\" aria-label=\"En savoir plus sur Qu&#8217;est-ce qu&#8217;un processus isochorique &#8211; Processus isom\u00e9trique &#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 qu&#039;un processus isochorique - Processus isom\u00e9trique - D\u00e9finition<\/title>\n<meta name=\"description\" content=\"Processus isochorique - Processus isom\u00e9trique. 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