Expansion work

[Marsenne Cabral 1A]

Can anyone help me with this question?

How much work does 100 g of water do when it freezes at ) degrees Celsius and pushes back the metal wall of a pipe that exerts an opposing pressure of 1070 atm? The densities of water and ice at 0 degrees Celsius are 1.00g/cm^3 and .92 g/cm^3 respectively.

[Emily Huang 1E]

You would use the equation w=-PdeltaV. To get the final and intial volume you would multiply the grams of water by the density and convert cm3 to L. 1cm3 is 10^-3 L. Then you would use 1070 as the pressure value and plug in deltaV and convert L*atm to Joules to get the final work done.