Statistical-Mechanical Calculation of Surface Properties of Simple Liquids and Liquid Mixtures. I. Pure Liquids

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Abstract
Statistical calculations of surfaceproperties of simple liquids at two different reduced temperatures are presented. Alternatively, the results represent the properties of argon and nitrogen, respectively, at 84°K. The equation of state employed here is the Reiss–Frisch–Lebowitz equation of state for a hard‐sphere fluid, on which is superimposed a van der Waals interaction term. The agreement between our values of the surface tension and the experimental values is satisfactory considering the limitations imposed by the model. The results are compared with those of earlier works.