{"id":46422,"date":"2019-10-22T05:17:04","date_gmt":"2019-10-22T04:17:04","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/quest-ce-quune-propriete-extensive-et-intensive-definition\/"},"modified":"2020-03-02T10:23:31","modified_gmt":"2020-03-02T09:23:31","slug":"quest-ce-quune-propriete-extensive-et-intensive-definition","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-quune-propriete-extensive-et-intensive-definition\/","title":{"rendered":"Qu&#8217;est-ce qu&#8217;une propri\u00e9t\u00e9 extensive et intensive &#8211; D\u00e9finition"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-clearfix\">En thermodynamique, une propri\u00e9t\u00e9 \u00e9tendue d\u00e9pend de la quantit\u00e9 de masse ou de la taille ou de l&#8217;\u00e9tendue d&#8217;un syst\u00e8me, contrairement \u00e0 une propri\u00e9t\u00e9 intensive.\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>Propri\u00e9t\u00e9s \u00e9tendues &#8211; Propri\u00e9t\u00e9s invisibles<\/h2>\n<p>Les propri\u00e9t\u00e9s thermodynamiques peuvent \u00eatre divis\u00e9es en deux classes g\u00e9n\u00e9rales:<\/p>\n<ul>\n<li><strong>Propri\u00e9t\u00e9s \u00e9tendues:<\/strong>\u00a0Une\u00a0<strong>propri\u00e9t\u00e9 \u00e9tendue<\/strong>\u00a0d\u00e9pend de la\u00a0<strong>quantit\u00e9 de masse<\/strong>\u00a0pr\u00e9sente ou de la\u00a0<strong>taille ou de l&#8217;\u00e9tendue d&#8217;un syst\u00e8me<\/strong>\u00a0.\u00a0<strong>La masse, le volume total et l&#8217;\u00e9nergie<\/strong>\u00a0sont des exemples de\u00a0<strong>propri\u00e9t\u00e9s \u00e9tendues<\/strong>\u00a0.\u00a0La valeur d&#8217;une propri\u00e9t\u00e9 \u00e9tendue varie directement avec la masse.\u00a0Ainsi, si une quantit\u00e9 de mati\u00e8re dans un \u00e9tat donn\u00e9 est divis\u00e9e en deux parties \u00e9gales, chaque partie aura la m\u00eame valeur de propri\u00e9t\u00e9 intensive que la valeur d&#8217;origine et \u00e9gale \u00e0 la moiti\u00e9 de la valeur de la propri\u00e9t\u00e9 \u00e9tendue.\u00a0<strong>Les propri\u00e9t\u00e9s \u00e9tendues sont additives<\/strong>\u00a0pour les sous-syst\u00e8mes.\u00a0Le syst\u00e8me peut \u00eatre divis\u00e9 en un nombre quelconque de sous-syst\u00e8mes et la valeur de la propri\u00e9t\u00e9 pour le syst\u00e8me correspond \u00e0 la somme de la propri\u00e9t\u00e9 pour chaque sous-syst\u00e8me.<\/li>\n<\/ul>\n<ul>\n<li><strong>Propri\u00e9t\u00e9 intensive:<\/strong>\u00a0Une\u00a0<strong>propri\u00e9t\u00e9 intensive<\/strong>\u00a0est\u00a0<strong>ind\u00e9pendante de la quantit\u00e9<\/strong>\u00a0de masse et peut varier d&#8217; un\u00a0endroit \u00e0 l&#8217;\u00a0int\u00e9rieur du syst\u00e8me \u00e0 tout moment.\u00a0Par exemple, la temp\u00e9rature d&#8217;un syst\u00e8me en \u00e9quilibre thermique est la m\u00eame que la temp\u00e9rature de n&#8217;importe quelle partie de celui-ci.\u00a0Si le syst\u00e8me est divis\u00e9, la temp\u00e9rature de chaque sous-syst\u00e8me est identique.\u00a0<strong>La temp\u00e9rature, la pression, le volume sp\u00e9cifique<\/strong>\u00a0et la\u00a0<strong>densit\u00e9<\/strong>\u00a0sont des exemples de propri\u00e9t\u00e9s intensives.\u00a0Les quantit\u00e9s sp\u00e9cifiques sont \u00e9galement appel\u00e9es variables intensives, bien qu&#8217;il existe certaines variables intensives qui n&#8217;ont pas d&#8217;\u00e9quivalent extensif, telles que la pression ou la temp\u00e9rature.\u00a0Les propri\u00e9t\u00e9s intensives peuvent \u00eatre des fonctions \u00e0 la fois de position et de temps, alors que les propri\u00e9t\u00e9s \u00e9tendues varient au maximum avec le temps.<\/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>Propri\u00e9t\u00e9s sp\u00e9cifiques<\/h2>\n<p><strong>Les propri\u00e9t\u00e9s sp\u00e9cifiques<\/strong>\u00a0du mat\u00e9riau\u00a0<strong>sont\u00a0<\/strong><strong>d\u00e9riv\u00e9es<\/strong>\u00a0d&#8217;autres propri\u00e9t\u00e9s intensives et extensives de ce mat\u00e9riau.\u00a0Par exemple, la\u00a0<strong>densit\u00e9<\/strong>\u00a0de l&#8217;eau est une propri\u00e9t\u00e9 intensive et peut \u00eatre d\u00e9duite des mesures de la masse d&#8217;un volume d&#8217;eau (propri\u00e9t\u00e9 extensive) divis\u00e9 par le volume (une autre propri\u00e9t\u00e9 \u00e9tendue).\u00a0La\u00a0<strong>capacit\u00e9 thermique<\/strong>\u00a0, qui est une propri\u00e9t\u00e9 \u00e9tendue d&#8217;un syst\u00e8me, peut \u00e9galement \u00eatre d\u00e9duite de\u00a0<strong>la capacit\u00e9 thermique<\/strong>\u00a0,\u00a0<strong><em>C\u00a0<\/em><em><sub>p<\/sub><\/em><\/strong>\u00a0et de la\u00a0<strong>masse<\/strong>\u00a0du syst\u00e8me.\u00a0La division de ces propri\u00e9t\u00e9s \u00e9tendues donne la\u00a0<strong>capacit\u00e9 thermique sp\u00e9cifique<\/strong>\u00a0,\u00a0<strong><em>c\u00a0<\/em><em><sub>p<\/sub><\/em><\/strong>\u00a0, qui est une\u00a0<strong>propri\u00e9t\u00e9 intensive<\/strong>\u00a0.<\/p>\n<p>Les propri\u00e9t\u00e9s sp\u00e9cifiques sont souvent utilis\u00e9es dans les tables de r\u00e9f\u00e9rence pour enregistrer les donn\u00e9es de mat\u00e9riau ind\u00e9pendamment de la taille ou de la masse.\u00a0Ils sont\u00a0<strong>tr\u00e8s utiles pour effectuer des comparaisons<\/strong>\u00a0sur un attribut tout en annulant l\u2019effet des variations d\u2019un autre attribut.<\/p>\n<figure id=\"attachment_16029\" class=\"wp-caption aligncenter\" aria-describedby=\"caption-attachment-16029\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Table-of-specific-properties-thermodynamics.png\"><img loading=\"lazy\" class=\"size-full wp-image-16029 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Table-of-specific-properties-thermodynamics.png\" alt=\"Propri\u00e9t\u00e9s sp\u00e9cifiques - thermodynamique\" width=\"708\" height=\"306\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Table-of-specific-properties-thermodynamics.png\" \/><\/a><figcaption id=\"caption-attachment-16029\" class=\"wp-caption-text\">Tableau de certaines propri\u00e9t\u00e9s sp\u00e9cifiques<\/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-accordion\">\n<div class=\"su-spoiler su-spoiler-style-default su-spoiler-icon-arrow\" data-anchor=\"References\">\n<div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><\/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>En thermodynamique, une propri\u00e9t\u00e9 \u00e9tendue d\u00e9pend de la quantit\u00e9 de masse ou de la taille ou de l&#8217;\u00e9tendue d&#8217;un syst\u00e8me, contrairement \u00e0 une propri\u00e9t\u00e9 intensive.\u00a0G\u00e9nie thermique Propri\u00e9t\u00e9s \u00e9tendues &#8211; Propri\u00e9t\u00e9s invisibles Les propri\u00e9t\u00e9s thermodynamiques peuvent \u00eatre divis\u00e9es en deux classes g\u00e9n\u00e9rales: Propri\u00e9t\u00e9s \u00e9tendues:\u00a0Une\u00a0propri\u00e9t\u00e9 \u00e9tendue\u00a0d\u00e9pend de la\u00a0quantit\u00e9 de masse\u00a0pr\u00e9sente ou de la\u00a0taille ou de l&#8217;\u00e9tendue d&#8217;un &#8230; <a title=\"Qu&#8217;est-ce qu&#8217;une propri\u00e9t\u00e9 extensive et intensive &#8211; D\u00e9finition\" class=\"read-more\" href=\"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-quune-propriete-extensive-et-intensive-definition\/\" aria-label=\"En savoir plus sur Qu&#8217;est-ce qu&#8217;une propri\u00e9t\u00e9 extensive et intensive &#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;une propri\u00e9t\u00e9 extensive et intensive - D\u00e9finition<\/title>\n<meta name=\"description\" content=\"En thermodynamique, une propri\u00e9t\u00e9 extensive d\u00e9pend de la quantit\u00e9 de masse ou de la taille ou de l&#039;\u00e9tendue d&#039;un syst\u00e8me, alors qu&#039;une propri\u00e9t\u00e9 intensive ne le fait pas. 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