# Redlich Kwong Equation of State Calculator

Posted by Dinesh onUse this simple calculator to find gas pressure using redlich kwong equation of state formula.

In thermodynamics, the Redlich - Kwong equation of state is an empirical formula equation that relates pressure, temperature and volume of gases. Redlich-Kwong formula was formed by austrian physical chemist Otto Redlich and chemical engineer Joseph Neng Shun Kwong in 1949.

## Redlich Kwong Equation of State Calculation

### Formula:

P = (R × T / V_{m} - b) - [ a / (?T V_{m} (V_{m} + b) ) ]

P - the gas pressure,

R - the gas constant,

T - temperature,

V

_{m}- the molar volume (V/n),

a - a constant that corrects for attractive potential of molecules,

b - a constant that corrects for volume