"L'entropia di vaporizzazione (o entropia di ebollizione) \u00E8 una grandezza che esprime l'aumento di entropia dovuto al processo di vaporizzazione. Questa variazione positiva \u00E8 dovuta all'aumento del disordine di un sistema materiale quando questo passa dallo stato solido cristallino (stato molto ordinato) o liquido (meno ordinato) allo stato aeriforme (molto disordinato). Nel caso di passaggio di stato solido \u2192 aeriforme solitamente si utilizza anche il termine entropia di sublimazione. L'unit\u00E0 di misura nel SI \u00E8 J / mol \u00B7 K. Il processo naturale di transizione di fase avviene nel momento in cui l'associato cambiamento dell'energia libera di Gibbs \u00E8 negativa. Segue che l'entropia di vaporizzazione \u00E8 in relazione con il punto di ebollizione (o di sublimazione) e il calore di vaporizzazione: Secondo la regola di Trouton l'entropia di vaporizzazione di un liquido pu\u00F2 essere approssimata a circa 88 J/mol \u00B7 K."@it . . "Entropy of vaporization"@en . "L'entropie de vaporisation d'un liquide pur est la variation d'entropie qui accompagne son passage de l'\u00E9tat liquide \u00E0 l'\u00E9tat vapeur, c'est-\u00E0-dire sa vaporisation, rapport\u00E9e \u00E0 la quantit\u00E9 de mati\u00E8re mise en jeu. L'entropie de vaporisation est not\u00E9e et s'exprime en joules par kelvin et par mole (J\u00B7K\u22121\u00B7mol\u22121). C'est une grandeur intensive. La vaporisation \u00E9tant une transformation \u00E0 pression constante, la chaleur re\u00E7ue de fa\u00E7on r\u00E9versible par le liquide lors de la vaporisation est \u00E9gale \u00E0 la variation de son enthalpie : . L'enthalpie de vaporisation est \u00E9gale \u00E0 cette variation d'enthalpie rapport\u00E9e \u00E0 la quantit\u00E9 de mati\u00E8re mis en jeu : . La vaporisation \u00E9tant une transformation r\u00E9versible, d'apr\u00E8s le deuxi\u00E8me principe de la thermodynamique l'entropie re\u00E7ue \u00E0 la temp\u00E9rature est \u00E9gale \u00E0 . Par cons\u00E9quent l'entropie de vaporisation s'exprime selon : Entropie de vaporisation : Cette relation montre que, contrairement \u00E0 l'enthalpie, l'entropie de vaporisation diminue rapidement lorsque la temp\u00E9rature augmente. \u00C0 la temp\u00E9rature de vaporisation normale du liquide, c'est-\u00E0-dire pour une pression de vapeur saturante \u00E9gale \u00E0 la pression atmosph\u00E9rique normale de 101 325 Pa, elle est donn\u00E9e approximativement par la r\u00E8gle de Trouton \u2248 87 J K\u22121 mol\u22121. Cette r\u00E8gle n'est pas valable pour les liquides associ\u00E9s par liaison hydrog\u00E8ne (par ex. l'eau) et elle doit \u00EAtre modifi\u00E9e pour ceux qui se vaporisent \u00E0 tr\u00E8s basse (par ex. les gaz liqu\u00E9fi\u00E9s) ou \u00E0 tr\u00E8s haute temp\u00E9rature (par ex. les m\u00E9taux fondus)."@fr . "In thermodynamics, the entropy of vaporization is the increase in entropy upon vaporization of a liquid. This is always positive, since the degree of disorder increases in the transition from a liquid in a relatively small volume to a vapor or gas occupying a much larger space. At standard pressure = 1 bar, the value is denoted as and normally expressed in joules per mole-kelvin, J/(mol\u00B7K)."@en . "In thermodynamics, the entropy of vaporization is the increase in entropy upon vaporization of a liquid. This is always positive, since the degree of disorder increases in the transition from a liquid in a relatively small volume to a vapor or gas occupying a much larger space. At standard pressure = 1 bar, the value is denoted as and normally expressed in joules per mole-kelvin, J/(mol\u00B7K). For a phase transition such as vaporization or fusion (melting), both phases may coexist in equilibrium at constant temperature and pressure, in which case the difference in Gibbs free energy is equal to zero: where is the heat or enthalpy of vaporization. Since this is a thermodynamic equation, the symbol refers to the absolute thermodynamic temperature, measured in kelvins (K). The entropy of vaporization is then equal to the heat of vaporization divided by the boiling point: According to Trouton's rule, the entropy of vaporization (at standard pressure) of most liquids has similar values. The typical value is variously given as 85 J/(mol\u00B7K), 88 J/(mol\u00B7K) and 90 J/(mol\u00B7K). Hydrogen-bonded liquids have somewhat higher values of"@en . . . . . "Entropie de vaporisation"@fr . . "Die Verdampfungsentropie beschreibt die \u00C4nderung der Entropie einer Fl\u00FCssigkeit beim \u00DCbergang in die Gasphase."@de . . . . . . . . . "L'entropia di vaporizzazione (o entropia di ebollizione) \u00E8 una grandezza che esprime l'aumento di entropia dovuto al processo di vaporizzazione. Questa variazione positiva \u00E8 dovuta all'aumento del disordine di un sistema materiale quando questo passa dallo stato solido cristallino (stato molto ordinato) o liquido (meno ordinato) allo stato aeriforme (molto disordinato). Nel caso di passaggio di stato solido \u2192 aeriforme solitamente si utilizza anche il termine entropia di sublimazione. L'unit\u00E0 di misura nel SI \u00E8 J / mol \u00B7 K."@it . . . . . . . . . "3007"^^ . . "3011538"^^ . . . . . . . "Verdampfungsentropie"@de . "\u0627\u0646\u062A\u0631\u0648\u0628\u064A\u0627 \u0627\u0644\u062A\u0628\u062E\u0631(\u0628\u0627\u0644\u0625\u0646\u062C\u0644\u064A\u0632\u064A:Entropy of vaporization) \u0647\u064A \u0627\u0644\u0632\u064A\u0627\u062F\u0629 \u0641\u064A \u0627\u0644\u0623\u0646\u062A\u0631\u0648\u0628\u064A \u0623\u062B\u0646\u0627\u0621 \u0639\u0645\u0644\u064A\u0629 \u0627\u0644\u062A\u0628\u062E\u0631 ,\u064A\u0623\u062E\u0630 \u0642\u064A\u0645 \u0625\u064A\u062C\u0627\u0628\u064A\u0629 \u0639\u0646\u062F \u062A\u062D\u0648\u0644 \u0627\u0644\u0645\u0627\u062F\u0629 \u0645\u0646 \u0627\u0644\u062D\u0627\u0644\u0629 \u0627\u0644\u0635\u0644\u0628\u0629 \u0627\u0644\u0628\u0644\u0648\u0631\u064A\u0629 \u0627\u0644\u0645\u0646\u062A\u0638\u0645\u0629 \u0623\u0648 \u0627\u0644\u062D\u0627\u0644\u0629 \u0627\u0644\u0633\u0627\u0626\u0644\u0629 \u0625\u0644\u0649 \u0627\u0644\u062D\u0627\u0644\u0629 \u0627\u0644\u063A\u0627\u0632\u064A\u0629 ,\u064A\u0631\u0645\u0632 \u0644\u0647 \u0394Sovap \u0648\u064A\u0642\u0627\u0633 \u0628\u0648\u062D\u062F\u0629 \u062C\u0648\u0644/mol\u00B7\u062F\u0631\u062C\u0629 \u062D\u0631\u0627\u0631\u0629 \u0645\u0637\u0644\u0642\u0629 , \u0648\u064A\u062A\u0631\u062A\u0628 \u0639\u0644\u0649 \u062A\u063A\u064A\u0631 \u0627\u0646\u062A\u0631\u0648\u0628\u064A\u0627 \u0627\u0644\u062A\u0628\u062E\u0631 \u0648\u0646\u0642\u0637\u0629 \u0627\u0644\u063A\u0644\u064A\u0627\u0646 \u062A\u063A\u064A\u0631 \u0627\u0644\u0645\u062D\u062A\u0648\u0649 \u0627\u0644\u062D\u0631\u0627\u0631\u064A \u0643\u0627\u0644\u062A\u0627\u0644\u064A : \u0641\u064A \u062D\u0627\u0644\u0629 \u0627\u0631\u062A\u0628\u0627\u0637 \u0627\u0644\u062A\u063A\u064A\u0631 \u0641\u064A \u0637\u0648\u0631\u0627\u0644\u0645\u0627\u062F\u0629 \u0645\u0639 \u0627\u0644\u062A\u063A\u064A\u0631 \u0641\u064A \u0637\u0627\u0642\u0629 \u062C\u064A\u0628\u0633 \u0627\u0644\u062D\u0631\u0629 \u062A\u0623\u062E\u0630 \u0627\u0646\u062A\u0631\u0648\u0628\u064A\u0627 \u0627\u0644\u062A\u0628\u062E\u0631 \u0642\u064A\u0645\u0629 \u0633\u0627\u0644\u0628\u0629."@ar . . . . . "Die Verdampfungsentropie beschreibt die \u00C4nderung der Entropie einer Fl\u00FCssigkeit beim \u00DCbergang in die Gasphase."@de . . . . . . . . . . . . . "L'entropie de vaporisation d'un liquide pur est la variation d'entropie qui accompagne son passage de l'\u00E9tat liquide \u00E0 l'\u00E9tat vapeur, c'est-\u00E0-dire sa vaporisation, rapport\u00E9e \u00E0 la quantit\u00E9 de mati\u00E8re mise en jeu. L'entropie de vaporisation est not\u00E9e et s'exprime en joules par kelvin et par mole (J\u00B7K\u22121\u00B7mol\u22121). C'est une grandeur intensive. La vaporisation \u00E9tant une transformation r\u00E9versible, d'apr\u00E8s le deuxi\u00E8me principe de la thermodynamique l'entropie re\u00E7ue \u00E0 la temp\u00E9rature est \u00E9gale \u00E0 . Par cons\u00E9quent l'entropie de vaporisation s'exprime selon : Entropie de vaporisation :"@fr . . . . . "\u0625\u0646\u062A\u0631\u0648\u0628\u064A\u0627 \u0627\u0644\u062A\u0628\u062E\u0631"@ar . . "1108976615"^^ . "Entropia di vaporizzazione"@it . "\u0627\u0646\u062A\u0631\u0648\u0628\u064A\u0627 \u0627\u0644\u062A\u0628\u062E\u0631(\u0628\u0627\u0644\u0625\u0646\u062C\u0644\u064A\u0632\u064A:Entropy of vaporization) \u0647\u064A \u0627\u0644\u0632\u064A\u0627\u062F\u0629 \u0641\u064A \u0627\u0644\u0623\u0646\u062A\u0631\u0648\u0628\u064A \u0623\u062B\u0646\u0627\u0621 \u0639\u0645\u0644\u064A\u0629 \u0627\u0644\u062A\u0628\u062E\u0631 ,\u064A\u0623\u062E\u0630 \u0642\u064A\u0645 \u0625\u064A\u062C\u0627\u0628\u064A\u0629 \u0639\u0646\u062F \u062A\u062D\u0648\u0644 \u0627\u0644\u0645\u0627\u062F\u0629 \u0645\u0646 \u0627\u0644\u062D\u0627\u0644\u0629 \u0627\u0644\u0635\u0644\u0628\u0629 \u0627\u0644\u0628\u0644\u0648\u0631\u064A\u0629 \u0627\u0644\u0645\u0646\u062A\u0638\u0645\u0629 \u0623\u0648 \u0627\u0644\u062D\u0627\u0644\u0629 \u0627\u0644\u0633\u0627\u0626\u0644\u0629 \u0625\u0644\u0649 \u0627\u0644\u062D\u0627\u0644\u0629 \u0627\u0644\u063A\u0627\u0632\u064A\u0629 ,\u064A\u0631\u0645\u0632 \u0644\u0647 \u0394Sovap \u0648\u064A\u0642\u0627\u0633 \u0628\u0648\u062D\u062F\u0629 \u062C\u0648\u0644/mol\u00B7\u062F\u0631\u062C\u0629 \u062D\u0631\u0627\u0631\u0629 \u0645\u0637\u0644\u0642\u0629 , \u0648\u064A\u062A\u0631\u062A\u0628 \u0639\u0644\u0649 \u062A\u063A\u064A\u0631 \u0627\u0646\u062A\u0631\u0648\u0628\u064A\u0627 \u0627\u0644\u062A\u0628\u062E\u0631 \u0648\u0646\u0642\u0637\u0629 \u0627\u0644\u063A\u0644\u064A\u0627\u0646 \u062A\u063A\u064A\u0631 \u0627\u0644\u0645\u062D\u062A\u0648\u0649 \u0627\u0644\u062D\u0631\u0627\u0631\u064A \u0643\u0627\u0644\u062A\u0627\u0644\u064A : \u0641\u064A \u062D\u0627\u0644\u0629 \u0627\u0631\u062A\u0628\u0627\u0637 \u0627\u0644\u062A\u063A\u064A\u0631 \u0641\u064A \u0637\u0648\u0631\u0627\u0644\u0645\u0627\u062F\u0629 \u0645\u0639 \u0627\u0644\u062A\u063A\u064A\u0631 \u0641\u064A \u0637\u0627\u0642\u0629 \u062C\u064A\u0628\u0633 \u0627\u0644\u062D\u0631\u0629 \u062A\u0623\u062E\u0630 \u0627\u0646\u062A\u0631\u0648\u0628\u064A\u0627 \u0627\u0644\u062A\u0628\u062E\u0631 \u0642\u064A\u0645\u0629 \u0633\u0627\u0644\u0628\u0629."@ar .