enthalpy calculation according to H. F. Holmes, R. E. Mesmer 1983: 0-250degC; <6mol/kg (doi:10.1021/j100230a030)
function apparentMolarEnthalpy_KCl_Holmes1983 input SI.Temp_K T; output SI.SpecificEnthalpy h_app "apparent molar enthalpy"; end apparentMolarEnthalpy_KCl_Holmes1983;