A 20.0 kg block of ice is sitting in a cooler. The temperature of the ice is 0.0_C when it is put into the cooler. As it melts, how much heat does the block of ice absorb?

a.

8.68 X 10^4 J

c.

2.36 X 10^4 J

b.

6.68 X 10^6 J

d.

3.68 X 10^6 J

The heat that ice will need to melt at 0 °C is equivalent to the latent heat of fusion of water, which has a value of 334 Joules per gram.

Grams of water = 20 x 1000

H = ml; where H is the heat, m is the mass of water, l is the latent heat of fusion of water.

H = 20000 x 334

= 6.68 x 10⁶ Joules

The answer is C