Dieterici equation of state

The Dieterici equation of state, proposed in 1899 (Ref. 1) is given by

$\left.p(v-b)\right.=kTe^{-a/kTv}$

where Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle a} is an empirical constant.

References

1. C. Dieterici, Ann. Phys. Chem. Wiedemanns Ann. 69, 685 (1899)
2. Richard J. Sadus "Equations of state for fluids: The Dieterici approach revisited", Journal of Chemical Physics 115 pp. 1460-1462 (2001)