Collect. Czech. Chem. Commun. 1987, 52, 29-44

Mixing rules for the back equation of state

Tomáš Boublíka and Benjamin C.-Y. Lub

a Institute of Chemical Process Fundamentals, Czechoslovak Academy of Sciences, 165 02 Prague 6-Suchdol, Czechoslovakia
b Department of Chemical Engineering, University of Ottawa, Ottawa, Ontario, Canada KIN 9B4


Van der Waals type of mixing rule for the energy parameter us together with the mixing rules introduced previously for parameters αs and Vs0 of the BACK equation were employed in evaluating excess properties of mixing, Henry's law constant and high pressure vapour-liquid equilibria. A comparison with the experimental data reveals that the BACK equation together with the suggested mixing rules could provide good prediction of equilibrium properties of mixtures of relatively simple molecules.