Question

During the process of melting, the heat given to a body is utilized in

• A. increasing the temperature
• B. increasing the density of the material
• C. increasing the average distance between the molecules
• D. decreasing the mass of the body

Answer 1

The correct option is C increasing the average distance between the molecules

During the process of melting, the heat given to a body is utilized in increasing the average distance between the molecules, i.e. changing the physical state or phase of the body. This heat that does not result in a rise in the body's temperature, is called the latent heat of fusion of the body.