@property<EOL><INDENT>def Prls(self):<DEDENT>
return [i.Prl for i in self.Chemicals]<EOL>
r'''Pure component Prandtl numbers of the liquid phase of the chemicals
        in the mixture at its current temperature and pressure, [dimensionless].

        .. math::
            Pr = \frac{C_p \mu}{k}

        Examples
        --------
        >>> Mixture(['benzene', 'hexane'], ws=[0.5, 0.5], T=320).Prls
        [6.13542244155373, 5.034355147908088]