Direct Determination of the Interaction Potentials of Sulphur Hexafluride-Noble Gases from the Extended Principle of Corresponding States

Abstract

The pair-potential energy functions SF 6 -noble gases have been determined from a direct inversion of the experimentally reduced-viscosity collision integrals obtained from the corresponding states correlation. The resulting potentials are in an excellent agreement with the previously determined potentials. The collision integrals and thier ratios of these potentials which are necessary to calculate the theoretical values of transport coefficients are computed. The collision integrals have been used to predict the diffusion coefficients of the binary mixtures of hexafluoride with noble gases. The results indicate the agreement between theory and experiment is within the experimental uncertainties.