function fugacityCoefficient_pTN input Modelica.SIunits.Pressure p "Pressure"; input Modelica.SIunits.Temperature T "Modelica.SIunits.Temperature"; input Modelica.SIunits.AmountOfSubstance[nC] N_1ph "Molar substance for the specified phase"; input Integer phaseLabel = PhaseLabelLiquid "Phase label"; output Real phi[nC](each unit = "1") "Fugacity coefficients"; end fugacityCoefficient_pTN;