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)vaporizing the water to become steam
E)heating the steam

Question

Quizplus · Accepted Answer

The greatest amount of energy absorbed by the material occurs during the process of vaporizing the water to become steam. This is because it requires the most energy to break the intermolecular bonds between water molecules during the phase change. The other processes (warming ice to the melting point, melting the ice to become water, warming the resulting water, and heating the steam) require less energy in comparison.

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