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Exact forms of the unrestricted Gibbs-Duhem equation

✍ Scribed by H.C. Van Ness


Publisher
Elsevier Science
Year
1959
Tongue
English
Weight
308 KB
Volume
10
Category
Article
ISSN
0009-2509

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✦ Synopsis


The exact forms of the Gibbs-Duhem equation in terms of fugacities and activity coefficients, applicable to any multicomponent phase, are developed in a straightforward manner. Reduction to restricted equations valid for constant temperature, constant pressure, or constant composition becomes a simple matter of dropping terms. RBsum&L'auteur developpe de fagon directe les formes de l'equation de Gibbs-Duhem en fonction des coefficients de fugacitt et d'activite, applicable a n'importe quelle phase B plusieurs composants. Le passage aux equations restreintes, valables pour une temperature con&ante, une pression constante, ou une composition constante, se resume a une simple suppression de termes. Zusammenfassung-Die exakten Formen der Gibbs-Duhem-Gleichung in Ausdriicken der Fugazitaten und Aktivitiitskoeffizienten, die auf eine Phase mit mehreren Komponenten anwendbar ist, werden in einfacher Weise entwickelt. Die eingeschrlnkte Gleichung fiir konstante Temperatur, konstanten Druck, oder konstantc Zusammensetzung crhiilt man durch einfaches Streichen von Ausdriicken.


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