Question

Which property of the liquid particles increased?
(1) Average kinetic energy
(2) Average potential energy
(3) Total light energy
(4) Total potential energy​

Answer 1

When a liquid is heated, its size expands, i.e. its intermolecular distance increases.

As the distance between the molecules increases, the molecules have more space to move freely. This results in the increase of kinetic energy.

Your answer is (1) Average Kinetic energy