Ten kilograms of ice at 260 K is duped into 20 kg of liquid water initially at 300 K in an insulated container. The average specific heats of ice and liquid may be taken as 2.065 and 4.188 kJ/kg-K, respectively, and 333.5 kJ/kg is the heat of fusion for ice. Calculate:
a) The mass of ice melted
b) Final temperature in degrees C.