Question

How does the average kinetic energy of the molecules of a substance changes during its change in phase at a constant temperature, on heating?

• A. It increases
• B. It decreases
• C. It does not change
  
• D. Can't say

Answer 1

The correct option is C It does not change

Answer is C

Kinetic energy of molecule is function of temperature and during phase change temperature remains constant ,hence KE remains same.