Abstract

Second virial coefficients have been determined for carbon disulphide, methyl chloride, acetone, and methanol over the temperature range of 50-150� with some additional results at lower temperatures. Similar work has been conducted on the selected mixtures methyl chloride-carbon disulphide, methyl chloride-acetone, acetone-carbon disulphide, and methyl chloride-argon. Methanol, exceptionally, shows very significant third virial contributions in the sub-atmospheric pressure range. A comparison is made with recent models pertaining to molecular interactions between unlike molecules possessing dipolar and quadrupolar contributions to the intermolecular forces.

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