Clausius equation of state

The Clausius equation of state is given by

$\left[p+{\frac {a}{T(v+c)^{2}}}\right](v-b)=RT$

where

$a=v_{c}-{\frac {RT_{c}}{4P_{c}}}$

$b={\frac {3RT_{c}}{8P_{c}}}-v_{c}$

and

$c={\frac {27R^{2}T_{c}^{2}}{64P_{c}}}$

where $p$ is the pressure, $T$ is the temperature and 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 R} is the molar gas constant. 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 T_c} is the critical temperature and 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 P_c} is the pressure at the critical point.

References

1. R. Clausius "Ueber das Verhalten der Kohlensäure in Bezug auf Druck, Volumen und Temperatur", Annalen der Physik und Chemie 9 pp. 337-357 (1880)