Collect. Czech. Chem. Commun. 1981, 46, 2989-3002
https://doi.org/10.1135/cccc19812989

Determination of the concentration dependence of the second derivative of Gibbs' energy with respect to composition on the basis of vapour-liquid equilibrium data

Josef P. Novák, Jaroslav Matouš, Josef Šobr and Jiří Pick

Department of Physical Chemistry, Prague Institute of Chemical Technology, 166 28 Prague 6

Abstract

The course of the second derivative of Gibbs' energy with respect to composition for binary systems is evaluated. The representation of this quantity in terms of different correlation relations (the Wilson, NRTL and UNIQUAC equations and the ASOG and UNIFAC methods) is also discussed.