@property<EOL><INDENT>def Cpgm(self):<DEDENT>
return self.HeatCapacityGas(self.T)<EOL>
r'''Gas-phase ideal gas heat capacity of the chemical at its current
        temperature, in units of [J/mol/K]. For calculation of this property at
        other temperatures, or specifying manually the method used to calculate
        it, and more - see the object oriented interface
        :obj:`thermo.heat_capacity.HeatCapacityGas`; each Chemical instance
        creates one to actually perform the calculations.

        Examples
        --------
        >>> Chemical('water').Cpgm
        33.583577868850675
        >>> Chemical('water').HeatCapacityGas.T_dependent_property(320)
        33.67865044005934
        >>> Chemical('water').HeatCapacityGas.T_dependent_property_integral(300, 320)
        672.6480417835064