Determination of Virial Coefficients from the Potential of Mean Force
- 1 September 1962
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 37 (5) , 1041-1042
- https://doi.org/10.1063/1.1733209
Abstract
A relation between the potential of mean force at zero separation and the excess chemical potential is derived for ``hard'' molecules. Application to hard spheres shows that of the Percus—Yevick, Kirkwood, convolution, and Born—Green—Yvon integral equations, only the Kirkwood equation gives the correct third viral coefficient.Keywords
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