Question

What happens to liquid when it changes to vapour state?

Answer 1

As some water molecules become vapor, an equal number of water vapor molecules condense back into the liquid state. ... As a result, the liquid molecules that remain now have lower kinetic energy. As evaporation occurs, the temperature of the remaining liquid decreases.

Answer 2

When a liquid changes into vapour state then intermolecular space is maximum and the energy of molecules is maximum at vapour state and the attraction force between molecules is minimum