The temperature of a 0.700 kg cube of ice is decreased

to 150°C.Then energy is gradually transferred to the cube as heat

while it is otherwise thermally isolated from its environment. The

total transfer is 0.6993 MJ. Assume the value of cice given in Table

18-3 is valid for temperatures from 150°C to 0°C. What is the fi-

nal temperature of the water?