Nezbeda EOS for hard convex bodies

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The Nezbeda equation of state (EOS) for hard convex bodies is given by (Eq. 13 in Ref. 1)

Z= \frac{P}{\rho kT}=\frac{1+(3\alpha-2)y + (\alpha^2 + \alpha -1)y^2 - \alpha(5\alpha-4)y^3}{(1-y)^3}

where y is the packing ratio, given by y = ρV, and

\alpha= \frac{RS}{3V}

where V is the volume, S, the surface area, and R the mean radius of curvature.

[edit] References

  1. I. Nezbeda "Virial expansion and an improved equation of state for the hard convex molecule system", Chemical Physics Letters 41 pp. 55-58 (1976)
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