Premium
The VIM theory of molecular thermodynamics: Part I: Analytic equation of state of nonpolar fluids
Author(s) -
Alem A. H.,
Mansoori G. A.
Publication year - 1984
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690300316
Subject(s) - thermodynamics , equation of state , statistical mechanics , simple (philosophy) , chemistry , statistical physics , methane , thermodynamic potential , molecular orbital theory , physics , molecule , molecular orbital , philosophy , epistemology , organic chemistry
Variational inequality minimization (VIM) theory of statistical mechanics is used to derive analytic equations of state for nonpolar fluids. Pair‐ and tripletintermolecular potential energy functions are taken into account in the formulation of this equation of state. The VIM theory has made it possible to derive rather simple expressions for the thermodynamic properties of nonpolar fluids. Predictions of the thermodynamic properties of argon and methane in the liquid phase, in the vapor phase, and in the critical region by the VIM equation of state are shown to be in excellent agreement with the experimental data.