Equation of state for dense gases from a self-consistent-field approach in the framework of kinetic theory. Issue 1 (2nd January 2020)

• Record Type: Journal Article
• Authors: Giusti, D.; Molinari, V.; Mostacci, D.
• Is Part Of: Radiation effects and defects in solids. Volume 175:Issue 1/2(2020)
• Page Start: 218
• Page End: 223
• Publication Date: 2020-01-02
• Subjects: Virial EoS -- van der Waals EoS -- Lennard–Jones potential -- self-consistent field; 05.30.Cd -- 05.30.Fk -- 05.30.Jp; Radiation chemistry -- Periodicals; Crystals -- Defects -- Periodicals; Crystal lattices -- Periodicals; 530.416
• DOI: 10.1080/10420150.2020.1718145
• Languages: English
• ISSNs: 1042-0150

Abstract

ABSTRACT: The departure from ideal gas behavior is described by several known equations of state (EoS), developed from a combination of theoretical considerations and experimental correlations. In this work, a different approach, in the framework of kinetic theory, is proposed: from a pairwise potential of the Lennard–Jones type, the interaction between molecules is accounted for by means of a self-consistent force field. The propagation of a perturbation wave in the dense gas or liquid of unperturbed density n 0 is described and the isothermal propagation velocity is determined. An EoS is derived and compared to the van der Waals EoS, of which it is found to reproduce the main features.