Latent Heat

Latent Heat and Types of Latent Heat.

The heat required to convert a solid into a liquid or vapour, or a liquid in to a vapour, without change of temperature is known as latent heat.

Types of Latent Heat-

(1) Latent Heat of Fusion-

The amount of heat energy that is required to change 1 kg or unit mass of a solid in to liquid at atmospheric pressure at its melting point is known as the latent heat of fusion.

(2) Latent Heat of Vaporisation-

The amount of heat energy that is required to change 1 kg or unit mass of a liquid in to gas at atmospheric pressure at its boiling point is known as the latent heat of vaporisation.

 

Helping Topics

Matter in Our Surroundings

NCERT Solutions Class 9

Worksheet Class 9

Differences between Sublimation and Deposition

Differences between Latent Heat of Fusion and Latent Heat of Vaporisation

Fusion

Vaporisation