function isothermalCompressibility_pTxi extends TILMedia.BaseClasses.PartialGasFunction; input SI.AbsolutePressure p "Pressure"; input SI.Temperature T "Temperature"; input SI.MassFraction[:] xi "Mass fractions of the first nc-1 components"; input TILMedia.Internals.GasName gasName "Gas name"; input Integer nc "Number of components"; input Integer condensingIndex "Index of condensing component"; output SI.Compressibility kappa "Isothermal compressibility"; end isothermalCompressibility_pTxi;