Question

Define the following terms:
(a) Vaporisation
(b) Condensation
(c) Sublimation

Answer 1

(a) Vaporisation : The heating process by which a liquid changes into its vapour state is called vaporisation.
(b) Condensation : The process by which a substance in gaseous state changes into its liquid state on cooling is called condensation.
(c) Sublimation: The process by which solid changes into gaseous state directly on heating and vice-versa without passing through the liquid state is called sublimation.