Question

For a latent heat, which of the following is true?

• A. The average kinetic energy of molecules remains constant.
• B. The average kinetic energy of molecules increases.
• C. The average potential energy changes
• D. The average potenatial energy of molecules remains constant

Answer 1

Answer: (A), (C)

The correct options are
A

The average kinetic energy of molecules remains constant.

C

The average potential energy changes

During a phase change, heat energy provided or removed is used to change the potential energy of the molecules of the substance, while the average kinetic energy of the molecules of the substance remains constant.