GibbsDerivs

record GibbsDerivs "Derivatives of dimensionless Gibbs-function w.r.t. dimensionless pressure and temperature"
    extends Modelica.Icons.Record;

    SI.Pressure p "Pressure";
    SI.Temperature T "Temperature";
    SI.SpecificHeatCapacity R "Specific heat capacity";
    Real pi(unit = "1") "Dimensionless pressure";
    Real tau(unit = "1") "Dimensionless temperature";
    Real g(unit = "1") "Dimensionless Gibbs-function";
    Real gpi(unit = "1") "Derivative of g w.r.t. pi";
    Real gpipi(unit = "1") "2nd derivative of g w.r.t. pi";
    Real gtau(unit = "1") "Derivative of g w.r.t. tau";
    Real gtautau(unit = "1") "2nd derivative of g w.r.t. tau";
    Real gtaupi(unit = "1") "Mixed derivative of g w.r.t. pi and tau";
end GibbsDerivs;