Vaporisation: A process in which, the liquid substance is converted into a gaseous state at its boiling point is called vaporisation.
- On heating, the kinetic energy of the molecules increases.
- Due to the increase in kinetic energy, the force of attraction between the molecules decreases. So, they escape into the surrounding in the form of vapours.
For example, the formation of water vapour from liquid water on heating.
Thus,