@property<EOL><INDENT>def JT(self):<DEDENT>
return phase_select_property(phase=self.phase, l=self.JTl, g=self.JTg)<EOL>
r'''Joule Thomson coefficient of the mixture at its
        current phase, temperature, and pressure in units of [K/Pa].
        Available only if single phase.

        .. math::
            \mu_{JT} = \left(\frac{\partial T}{\partial P}\right)_H = \frac{1}{C_p}
            \left[T \left(\frac{\partial V}{\partial T}\right)_P - V\right]
            = \frac{V}{C_p}\left(\beta T-1\right)

        Examples
        --------
        >>> Mixture(['water'], ws=[1]).JT
        -2.2150394958666412e-07