Question

How does a gas change into liquid on cooling?

Answer 1

Gas: Any material which has no definite shape or volume ,has no free surfaces and is easily compressible.

Liquid: Any material which has a definite volume but no definite shape and has one free surface.

• When a gas is cooled, it changes into a liquid.
• The process of changing a gas into liquid on cooling is called condensation.
• When gas is cooled, its particles lose kinetic energy and so the force of attraction between its particles increases.
• Due to which gas changes into a liquid.