Question

During an endothermic phase change, what happens to potential energy and the kinetic energy

Answer 1

During this phase Change heat energy is being absorbed by the molecules, and as a result the molecules possess a greater ability to move around and possess higher kinetic energy because of this. The molecules also possess a higher potential energy.

Answer 2

Answer:

d. Potential energy increases, and kinetic energy stays the same.

Explanation:

This is correct on edge.

The answers to the Enthalpy and Phase Changes quiz are:

1. D 25.0 kJ

2. A Delta Hfus

3. C heat of fusion

4. D Potential energy increases, and kinetic energy stays the same.

5. B This is an exothermic reaction that involves freezing.

6. B a thermometer

7. C 549 g

8. B Energy is absorbed, and potential energy increases.

9. D a solid to a liquid

10. C the periodic table