Use of accurate diffusion and second virial coefficients to determine (m, 6, 8) potential parameters for nine binary noble gas systems

Using accurate binary diffusion coefficients obtained over a temperature range of 275 to 323 K, together with some excellent second virial coefficients in the literature, (m, 6, 8) potential parameters have been obtained for the systems He-Ne, He-Ar, He-Kr, He-Xe, Ne-Ar, Ne-Kr, Ne-Xe, Ar-Kr and Ar-Xe. These parameters accurately predict all the precise binary transport properties which have been reported for these systems, some over a range of 1400 K. The present analysis indicates that these mixtures are not conformal with any one of the assumed (m, 6, 8) group of potentials.