Fugacity of a Component in a Mixture
Formula: f_i = P × exp(Σ -ln(x_i))
Fugacity, f_i, is a thermodynamic property that is an effective pressure that measures the tendency of a substance to escape or expand from its current phase. For a component in a mixture, the fugacity is influenced by the total pressure, P, and the composition of the mixture. The composition is a space-separated series of mole fractions, x_i, which must sum up to 1. The formula given calculates the fugacity of a component in a gas mixture utilizing the approximation that the fugacity coefficient is unity. This formula is applicable for ideal gas mixtures and provides a first approximation for real gas mixtures.
Tags: Thermodynamics, Fugacity, Mixture