New approximations to the virial equation of state for fluids

R. Reijnhart

Physica A: Statistical Mechanics and its Applications, 1975, vol. 83, issue 3, 533-547

Abstract: A simple equation of state for square-well (SW) molecules has been derived by approximating the radial distribution function in the virial equation by a corresponding function for hard spheres. If optimum parameters for the SW potential are chosen, experimental P-V-T data for methane, ethane, nitrogen and (liquid) octane can be quite satisfactorily described by the equation, except near the critical point.

Date: 1975
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:83:y:1975:i:3:p:533-547

DOI: 10.1016/0378-4371(75)90019-9

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