Abstract

A theoretically reasonable relation between intermolecular energy, volume and temperature, previously shown to be in quantitative agreement with accurate experimental data for liquid benzene, is now applied to liquid cyclohexane. Again, quantitative agreement is obtained. A real (simple) liquid is simulated by a hypothetical liquid in which the number of contacts made by a molecule with its close neighbours, the distance between the centers of contacting molecules, and the energy of each contact are each uniform at any given temperature. Intermolecular energies between noncontacting (more distant) pairs of molecules are neglected. The dependence of volume on pressure and temperature is given by a simple equation deduced from compressibility data.

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