Question

Assertion(A):There is no change in the temperature of a substance when it undergoes a change of state through it is still being heated. Reason(R):The heat supplied is absorbed either as latent heat of fusion or latent heat of vaporization​

Answer 1

Answer:

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A)

Explanation:

Answer 2

Answer:

The assertion 'There is no change in the temperature of a substance when it undergoes a change of state through it is still being heated' and the reason 'The heat supplied is absorbed either as latent heat of fusion or latent heat of vaporization' are correct.

Explanation:

Assertion: There is no change in the temperature of a substance when it undergoes a change of state through it is still being heated.

When a substance gets energy, it begins to break attractive intermolecular forces and there is no increment in kinetic energy. The substance changes state this way without any temperature change.

Reason: The heat supplied is absorbed either as latent heat of fusion or latent heat of vaporization.

Latent means hidden. Latent heat is the energy or heat supplied to a matter to change its state. There is no rise or change in temperature when the change takes place. Latent heat of fusion is required to change solid to liquid at the same temperature. Latent heat of vaporization is required to change liquid to vapor.

Conclusion:

The assertion and its reason are correct and linked.