A Mixture Consists of 70 G of Ice and 60 $\degree$

Multiple Choice

A mixture consists of 70 g of ice and 60 g of liquid water, both at 0 $\degree$ C. (The latent heat of fusion of water is 80 cal/g and the specific heat capacity of water is 1.0 cal/g C $\degree$ .) The amount of heat that must be added to melt all of the ice is about

A) 4000 cal.
B) 5600 cal.
C) 21,600 cal.
D) 32,400 cal.