Question

The phenomenon in which solid directly changes into vapour is called

Answer 1

Sublimation:

• It is a phenomenon in which solids are directly converted into a gaseous phase without changing into the liquid phase.
• This occurs when a substance acquires sufficient energy to overcome the weak attraction force of the molecule.
• Example: Camphor on heating converts directly into the gaseous phase.

So, The phenomenon in which solid directly changes into vapour is called Sublimation.