Abstract

General expressions are written for the second virial coefficient and the second dielectric virial coefficient of a gas made up of polar, polarizable, nonspherical molecules. The results obtained include the first correction terms due to translational and to rotational quantum effects, and it is argued that the rotational terms can be appreciable in some important experimental systems. Numerical values of both the classical virial coefficients and the first quantum corrections have been calculated for a model potential function including polarizable dipole energies and an angle-independent Lennard-Jones potential. The results are tabulated for a range of the parameters.

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