Which of these statements accurately describes latent heat is required in order to change water from the liquid to the vapour state?
A)Water molecules form a crystal structure, and it takes energy to break up this structure.
B)Molecules in the liquid phase must reach the boiling point of water before they can escape.
C)The hydrogen bonds between different water molecules must be broken to allow evaporation.
D)The additional energy is required to raise the mean speed of molecules high enough to escape the liquid.

Question

Quizplus · Accepted Answer

The hydrogen bonds between water molecules are a key factor in the phase change from liquid to vapor. These bonds must be broken for molecules to escape into the vapor phase, which requires energy, known as latent heat.

Which of These Statements Accurately Describes Latent Heat Is Required