def _Backward2c_T_Ph(P, h):
    """Backward equation for region 2c, T=f(P,h)

    Parameters
    ----------
    P : float
        Pressure [MPa]
    h : float
        Specific enthalpy [kJ/kg]

    Returns
    -------
    T : float
        Temperature [K]

    References
    ----------
    IAPWS, Revised Release on the IAPWS Industrial Formulation 1997 for the
    Thermodynamic Properties of Water and Steam August 2007,
    http://www.iapws.org/relguide/IF97-Rev.html, Eq 24

    Examples
    --------
    >>> _Backward2c_T_Ph(40,2700)
    743.056411
    >>> _Backward2c_T_Ph(60,3200)
    882.756860
    """
    I = [-7, -7, -6, -6, -5, -5, -2, -2, -1, -1, 0, 0, 1, 1, 2, 6, 6, 6, 6, 6,
         6, 6, 6]
    J = [0, 4, 0, 2, 0, 2, 0, 1, 0, 2, 0, 1, 4, 8, 4, 0, 1, 4, 10, 12, 16,
         20, 22]
    n = [-0.32368398555242e13, 0.73263350902181e13, 0.35825089945447e12,
         -0.58340131851590e12, -0.10783068217470e11, 0.20825544563171e11,
         0.61074783564516e6, 0.85977722535580e6, -0.25745723604170e5,
         0.31081088422714e5, 0.12082315865936e4, 0.48219755109255e3,
         0.37966001272486e1, -0.10842984880077e2, -0.45364172676660e-1,
         0.14559115658698e-12, 0.11261597407230e-11, -0.17804982240686e-10,
         0.12324579690832e-6, -0.11606921130984e-5, 0.27846367088554e-4,
         -0.59270038474176e-3, 0.12918582991878e-2]

    Pr = P/1
    nu = h/2000
    T = 0
    for i, j, ni in zip(I, J, n):
        T += ni * (Pr+25)**i * (nu-1.8)**j
    return T