Van Der Waals PVT equation
Input(s)
P: Pressure \((\mathrm{psi})\)
T: Temperature \((\mathrm{K})\)
a: Correlation Constant (dimensionless)
b: Correlation Constant (dimensionless)
V: Volume \(\left(\mathrm{ft}^{3}\right)\)
Output(s)
R: Gas Constant (BTU/psi mol K)
Formula(s)
\[
\mathrm{R}=\frac{\left(\mathrm{P}+\frac{\mathrm{a}}{\mathrm{V}^{2}}\right) *(\mathrm{~V}-\mathrm{b})}{\mathrm{T}}
\]
Reference(s)
John M. Campbell, Gas Conditioning and Processing, Vol. 1, Page: 48, Campbell Petroleum Series, Oklahoma, 1992.