function der_specificAbsoluteGasEntropy_pTn extends TILMedia.BaseClasses.PartialGasObjectFunction; input SI.AbsolutePressure p "Pressure"; input SI.Temperature T "Temperature"; input Integer compNo "Component ID"; input TILMedia.Internals.TILMediaExternalObject gasPointer; input Real der_p "Pressure"; input Real der_T "Temperature"; output Real der_s_i "Specific entropy of theoretical pure component"; end der_specificAbsoluteGasEntropy_pTn;