Question

_____the heat energy that is absorbed by solid without showing any rise in temperature.

• A. Latent heat of vaporization
• B. Latent heat of fusion
• C. Average kinetic energy
• D. None of these

Answer 1

The correct option is B

Latent heat of fusion

Latent heat of fusion (or vaporization) is the heat energy that is absorbed by solid (or liquid) without showing any rise in temperature during phase change at melting point (or boiling point). Since this energy is used for overcoming the inter-particle force of attraction, the kinetic energy of the particles remains constant and hence there is no rise in temperature.