Acta Chimica Slovaca (ACS) publishes papers on fundamental and applied aspects of chemistry, biochemistry, chemical technology, chemical engineering and process control, biotechnology and food technology. Welcome are also topics which include chemical aspects of materials, physical chemistry and chemical physics, analytical chemistry, macromolecular chemistry and biomedical engineering.

Partial Pressures in Thermodynamics of Classical Fluid Mixtures

Vít Samohýl, Ivan Samohýl *, Petr Voňka

Department of Physical Chemistry, Institute of Chemical Technology, Prague, Technická 5, 166 28 Prague 6, Czech Republic

E-mail: *,

Abstract: In the rational thermodynamics of most usual nonequilibrium “classical” fluid mixtures it has been proposed the “thermodynamic” partial pressure which generalize traditional definitions and merge together in an ideal gas mixture. In this paper, these thermodynamic partial pressures are calculated for a (real) gas mixture of methane-ethane-carbon dioxide and a liquid mixture of lithium hy¬droxide in water. The results are compared with those obtained using the classical formulations of partial pressures calculated in these mixtures as well.

Keywords: Gas mixture, Irreversible thermodynamics, Liquid mixture, Partial pressure, Rational thermodynamics, Thermodynamics of mixtures

Full paper in Portable Document Format: acs_0105.pdf

Acta Chimica Slovaca, Vol. 5, No. 1, 2012, pp. 29—36