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J Phys Chem B. 2017 Sep 21;121(37):8802-8808. doi: 10.1021/acs.jpcb.7b07157. Epub 2017 Sep 07.

Similarity Laws for the Lines of Ideal Free Energy and Chemical Potential in Supercritical Fluids.

The journal of physical chemistry. B

E M Apfelbaum, V S Vorob'ev

Affiliations

  1. Joint Institute for High Temperatures of Russian Academy of Sciences , Izhorskaya Street 13 Bldg. 2, Moscow 125412, Russia.
  2. National University of Science and Technology "MISIS" , Leninskiy Prospekt 4, Moscow 119049, Russia.

PMID: 28829617 DOI: 10.1021/acs.jpcb.7b07157

Abstract

We have found the curves on the density-temperature plane, along which the values of free energy and chemical potential correspond to ideal gas quantities. At first, we have applied the van der Waals equation to construct them and to derive their equations. Then we have shown that the same lines for real substances (Ar, N

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