What is Fugacity?
Fugacity is the effective pressure of a real gas that replaces pressure in thermodynamic equations:
- Measure of chemical potential
- Accounts for molecular interactions
- Equals pressure for ideal gases
- Temperature dependent property
Calculate Real Gas Fugacity Properties
ChemistryCalculatorHub.info
Calculate the fugacity coefficient using compressibility factor data.
Calculate fugacity from pressure and fugacity coefficient.
Calculate activity coefficient using fugacity and standard state fugacity.
Fugacity is the effective pressure of a real gas that replaces pressure in thermodynamic equations:
The fugacity coefficient (φ) represents:
Activity coefficient (γ) relates to:
Fugacity calculations are important for:
φ = f/P
Where f is fugacity and P is pressure
γ = f/(f°x)
Where f° is standard state fugacity and x is mole fraction
μ = μ° + RT ln(f/f°)
Relates fugacity to chemical potential