Chemistry - Change of freezing point

[ChemistryJack]

Homework Statement

The enthalpy of fusion of mercury is 2.292kJ/mol and its normal freezing point s 234.3K with a change in molar volume of +0.517cm^3 /mol on melting. At what temperature will the bottom of a column of mercury (density 13.6 g/cm^3) of height 10.0m be expected to freeze.

Homework Equations

The Attempt at a Solution

I'm really not sure how to go about this. I though I could work out the Potential energy, using P = mgh. Then maybe take this off the enthalpy of fusion. I don't want the answer, but some though-provoking advice would be much appreciated. Thanks!

 

[Borek]

Phase transition, pressure, temperature, volume change and enthalpy - that cries for a specific equation (relation). It is most often used for boiling points, but it works for every transition.

 

[ChemistryJack]

Clausius-Clapeyron?

 

[Borek]

That's what I would try.