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## Homework Statement

The density of water at 0 C is 999.8 kg/m^3 while that of ice at 0 C is 917.0 kg/m^3. What is the pressure generated by expanding ice as it freezes in a biological cell whose major component is water? Assume the cell to be a sphere of radius 5 micrometres.

I have started this question but I do not know how to complete it. I can't picture the right expression that will yield pressure with respect to a phase change.

## Homework Equations

P = F/A

Density = mass/volume

Q=mc[tex]\Delta[/tex]T

Q=mL

where L is the heat of transformation