In fact, an EOS is used directly for vapor liquid equilibrium, and solid phase is described indirectly from the EOS by fugacity ratio.
The procedure to properly reduce the underway pCO2 data and perform the steps necessary for calculation of the fugacity of CO2 from the measurements is described.
The fugacity coefficients of pure methane at different temperatures and pressures in the simulations are shown in Fig. 2a, and the fugacity coefficients of the mole fraction of methane in the binary gas mixture at different pressures in the simulations are described in Fig. 2b, c.
For gases, the standard state was for unit fugacity of a hypothetical ideal gas at 1 bar of pressure.
The rate constant for the overall loss is derived from fugacity calculations for a single segment system.
The criterion of vapor liquid solid equilibrium is that the fugacities for every component i, must satisfy the following equations: f_{i}^{V} = f_{i}^{L} = f_{{{text{pure}},i}}^{s} (P,T quad i = 1,2, ldots,n (9) f_{i}^{V} = f_{i}^{L} quad i = 1,2, ldots,n, (10 where f is the fugacity, N is the total number of components, and (f_{{{text{pure}},i}}^{s}) is the fugacity of the pure solid phase.
This tendency is measured by fugacity, a term derived from the Latin fugere ("to escape, to fly away").
where (phi _{alpha }^{(i)}) is the respective fugacity coefficient of component.
where f w is the fugacity of water vapor over an aqueous solution and is the fugacity of water vapor over pure water.
For gases, the standard state convention is unit fugacity of the hypothetical pure ideal gas at 1 bar and any temperature.
