The equation of state of symmetric extended Lennard-Jones fluids

Xiaohong Yang and Weiling Zhu

Physica A: Statistical Mechanics and its Applications, 2019, vol. 533, issue C

Abstract: This paper developed the conceptual model of symmetric extended Lennard-Jones fluid based on an extended Lennard-Jones potential function. Therein, important relationships between averaged intermolecular potential field (AIPF) and thermodynamic properties were presented, in which the equation of state was included. These formulascan not only predict the p-V-T properties of argon, nitrogen, carbon monoxide and methane that are representatives of spherical, polar and non-polar molecular fluids in acceptable accuracy, but also physically interpret the p-V-T properties from the AIPF. Obtained results have theoretical significance and can serve as reference or base in the analysis and computation of the p-V-T properties of simple fluids.

Keywords: Equation of state; Symmetric fluid; Extended Lennard-Jones potential; Averaged intermolecular potential field (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:533:y:2019:i:c:s0378437119312130

DOI: 10.1016/j.physa.2019.122090

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