Redlich-Kwong PVT equation

Input(s)

R: Gas Constant (BTU/mol K psi)

$\mathrm{T}$: Temperature $(\mathrm{K})$

$\mathrm{V}$: Volume $\left(\mathrm{ft}^{3}\right)$

a: Correlation Constant (dimensionless)

b: Correlation Constant (dimensionless)

Output(s)

P: Pressure (psi)

Formula(s)

$$ \mathrm{P}=\frac{\mathrm{R} * \mathrm{~T}}{\mathrm{~V}-\mathrm{b}}-\frac{\mathrm{a}}{\left(\mathrm{T}^{0.5}\right) * \mathrm{~V} *(\mathrm{~V}+\mathrm{b})} $$

Reference(s)

John M. Campbell, Gas Conditioning and Processing, Campbell Petroleum Series, Oklahoma, 1992, Vol. 1, Page: 48.