The enthalpy of fusion of mercury is 2.292 kJ mol −1 at its normal freezing point of 234.3 K; the change in molar volume on melting is XXXXXXXXXXcm 3 mol −1 . At what temperature will the bottom of a...

The enthalpy of fusion of mercury is 2.292 kJ mol⁻¹
at its normal freezing point of 234.3 K; the change in molar volume on melting is +0.517 cm³
mol⁻¹. At what temperature will the bottom of a column of mercury (mass density 13.6 g cm⁻³) of height 10.0 m be expected to freeze? The pressure at a depth d in a fluid with mass density ρ is ρgd, where g is the acceleration of free fall, 9.81 m s⁻².