Abstract
Equations of state for several non-spherical hard-particle fluids (prolate and oblate spherocylinders, prolate and oblate ellipsoids of revolution, homonuclear and heteronuclear diatomics) are developed for several geometrical shapes. For each type of particle, the known virial coefficients are fitted as polynomials in the shape factor α and then approximants, of a new type previously proposed for the hard sphere fluid, are constructed from the fittings. The equations of state thus obtained are in good to excellent agreement with existing simulation data and constitute a great improvement on other equations of state currently used for these fluids.
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