During a phase change, the temperature of a substance

decreases

increases

may increase or decrease

remains constant

During a phase change, the temperature of a substance remains constant

Explanation:

Step 1:

During phase change, the energy that is required, will be used to separate the molecules ( to change phase).

This energy is not used to change the temperature.

Since the kinetic energy of the molecules remains the same, the temperature of the substance remains constant.

hey your not cool]      

i think the answer is terrae but not 100 percent sure. ▓▬▬ §