Question

Which of the following causes the temperature of a substance to remain constant while it is undergoing a change in its state?

Latent heat
Lattice energy
Loss of heat
None of these​

Answer 1

Explanation:

During the charge of state of matter, the temperature remains same due to latent heat.

The heat which is supplied to phase change is used up for breaking the bonds between the molecules of the substance.

Latent heat is the heat that is required to convert a solid into a liquid/vapor, or a liquid into a vapour, without charge of temperature.

So, the correct option is 'a

Answer 2

Answer:

ans.

Explanation:

Latent heat

This type of heat energy causes the temeprature of a substance to remain constant while it undergoes a change,it is of two types

The latent heat of fusion and

The latent heat of vapourization.