Direct Determination of the Interaction Potentials of He–N2, Ne–N2 and Ar–N2 from the Extended Principle of Corresponding States

Abstract

The pair-potential energy functions for He–N2, Ne–N2, and Ar–N2 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 excellent agreement with the potentials independently obtained from molecular beam scattering measurements. The potentials have been used to predict the diffusion and viscosity coefficients for each system, and they are found to be in reasonable agreement with experimental values.