We start with n moles of supercooled h20(l) at 3 degrees celcius in a box insulated fromt he surroundings at a pressure of 1 bar. Some of the water is allowed to freeze and the whole system is brought back to 0 degrees celcius (where liquid and ice coexist in equilibrium. This process is conducted at constant pressure and adiabatic conditions.

Q: at this poin what is the fraction n(liquid)/n(total) of moles in the liquid state.

Information: DHfusion=3000 J/mol. Cm,p(ice)=28 J/mol*K,

Cm,p(liquid)=50J/mol*K

What I tried to do is use the formula DS=integral(nCm,pdT)-Dfusion+integral(nCm,p dT/T(ice)

i pretty sure that's completely worng. can someone lend a hand pleaes?