In Order to Melt $\underline { \text { two } }$

Multiple Choice

In order to melt $\underline { \text { two } }$ grams of ice, how many calories of heat energy must be added to the ice during its phase change? (specific heat of water = 1 cal/gm; heat of fusion = 85 cal/gm)
(heat of vaporization = 585 cal/gm; heat of sublimation = 670 cal/gm)

A) 2
B) 170
C) 172
D) 1170
E) 1340