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Assertion : Melting of solid causes no ...

Assertion : Melting of solid causes no change in internal energy.
Reason : Latent heat is the required to melt a unit mass of solid.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false

D

If assertion is false but reason is true

Text Solution

Verified by Experts

The correct Answer is:
D
Melting is associated with increase of internal energy without change in temperature. In view of the reason being correct the amount of heat absorbed or given out during change of state is expressed as Q = mL , where m is the mass of the substance and L is the latent heat of the substance.
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