A 100-g cube of ice is heated from -120 $\degree$C to +120 $\degree$C. In which of the following processes is the greatest amount of energy absorbed by this material?
A)warming ice to the melting point
B)melting the ice to become water
C)warming the resulting water
D)vaporising the water to become steam
E)heating the steam

Question

Quizplus · Accepted Answer

The greatest amount of energy absorbed occurs during the process of vaporizing the water to become steam. This requires a large amount of energy, known as the heat of vaporization, which is much greater than the energy required to warm the ice to its melting point or to warm the resulting water. Additionally, heating the steam requires less energy than vaporizing the water, so option E is not the correct answer.

A 100-G Cube of Ice Is Heated from -120 °\degree° C to +120

A 100-G Cube of Ice Is Heated from -120 $\degree$ C to +120