def calculate(self, T, P, zs, ws, method):
if method == SIMPLE:<EOL><INDENT>Cplms = [i(T) for i in self.HeatCapacityLiquids]<EOL>return mixing_simple(zs, Cplms)<EOL><DEDENT>elif method == LALIBERTE:<EOL><INDENT>ws = list(ws) ; ws.pop(self.index_w)<EOL>Cpl = Laliberte_heat_capacity(T, ws, self.wCASs)<EOL>MW = mixing_simple(zs, self.MWs)<EOL>return property_mass_to_molar(Cpl, MW)<EOL><DEDENT>else:<EOL><INDENT>raise Exception('<STR_LIT>')<EOL><DEDENT>
r'''Method to calculate heat capacity of a liquid mixture at 
        temperature `T`, pressure `P`, mole fractions `zs` and weight fractions
        `ws` with a given method.

        This method has no exception handling; see `mixture_property`
        for that.

        Parameters
        ----------
        T : float
            Temperature at which to calculate the property, [K]
        P : float
            Pressure at which to calculate the property, [Pa]
        zs : list[float]
            Mole fractions of all species in the mixture, [-]
        ws : list[float]
            Weight fractions of all species in the mixture, [-]
        method : str
            Name of the method to use

        Returns
        -------
        Cplm : float
            Molar heat capacity of the liquid mixture at the given conditions,
            [J/mol]