The heat of fusion for water is 80.cal/g.How many calories of heat are needed to melt a 35 g ice cube that has a temperature of 0 °C?
A)2300 cal
B)1600 cal
C)2800 cal
D)540 cal
E)0 cal

Question

Quizplus · Accepted Answer

The equation to calculate the heat needed to melt ice is:

Q = m × ΔHf

where Q is the amount of heat needed, m is the mass of the ice, and ΔHf is the heat of fusion for water.

Plugging in the values given in the problem, we get:

Q = 35 g × 80 cal/g = 2,800 cal

So, the answer is C) 2800 cal, which is the closest option.

The Heat of Fusion for Water Is 80