Question

Assertion: Melting of solid causes no change in internal energy. 

Reason: Latent heat is the heat required melt a unit mass of solid.

(a) If both assertion and reason are true and the reason is the correct explanation of the reason. 

(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 the assertion and reason both are false. 

(e) If assertion is false but reason is true. 

Answer 1

Correct option: (e)

Explanation:

Melting is associated with increasing of internal energy without change in temperature. Hence assertion is false. 

Latent heat is energy released or absorbed i.e. heat required to melt a unit mass of solid. Hence reason is true.