Free energy functional expansion as the generalized approach to the equation of state of dense fluids

V.Yu Bardik, D. Nerukh, E.V. Pavlov, M.S. Vlasyuk

Research output: Contribution to journalArticle

Abstract

A version of the thermodynamic perturbation theory based on a scaling transformation of the partition function has been applied to the statistical derivation of the equation of state in a highpressure region. Two modifications of the equations of state have been obtained on the basis of the free energy functional perturbation series. The comparative analysis of the experimental PV T- data on the isothermal compression for the supercritical fluids of inert gases has been carried out.

Original languageEnglish
Pages (from-to)612-618
Number of pages7
JournalUkrainian Journal of Physics
Volume57
Issue number6
Publication statusPublished - 18 Jul 2012

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