Eur. Phys. J. D 54, 349-367 (2009)
https://doi.org/10.1140/epjd/e2009-00089-5

Composition and thermodynamic functions of non-ideal plasma

Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 2848/8, 616 00 Brno, Czech Republic

Corresponding author: ^a zivny@feec.vutbr.cz

Received: 8 September 2008
Revised: 18 February 2009
Published online: 19 March 2009

Abstract

A general method is proposed for the computation of the composition and thermodynamic properties of a non-ideal fluid system in thermodynamic equilibrium. The method is based on minimizing the system's Gibbs energy to compute at constant pressure or Helmholtz energy to compute at constant volume, using successive approximations. The computation algorithm is implemented into the computer program in the C++ language. The method described has been used to compute the composition and thermodynamic properties of a system made up of products of SF₆ dissociation and ionization.