Water's heat of fusion is 80. rm{cal/g} , its specific heat is 1.0matrix{rm frac{cal}{g cdot ^{circ}C}}, and its heat of vaporization is 540 rm{cal/g} .
A canister is filled with 340 g of ice and 100. rm g of liquid water, both at 0 rm{^{circ}C} . The canister is placed in an oven until all the rm H_2O has boiled off and the canister is empty. How much energy in calories was absorbed?