Second Virial Coefficients for Nonspherical Molecules and Their Experimental Measurements

Document Type : Research Article

Authors

Department of Chemistry, Shiraz University, Shiraz, I.R. IRAN

10.30492/ijcce.1991.10940

Abstract

The virial coefficients can be obtained from statistical mechanics in connection with the intermolecular potentials. The intermolecular potential of polyatomic molecules is usually assumed to consist of a spherically symmetric component plus a contribution due to asphericaity of the molecular charge distribution. In this study, the second virial coefficients have been calculated for N2, CO and SF6 from the Lennard-Jones (6-12) potential. The results are in good agreement with those obtained experimentally.

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