Question

Statement-I: Increasing temperature increases the density of point defects. 

Statement-II: The process of formation of point defects in solids in endothermic and has ∆ > S 0. 

(A) Statement-I is true, statement-II is true, statement- II is the correct explanation of statement-I. 

(B) Statement-I is true, statement-II is true, statement-II is not the correct explanation of statement-I. 

(C) Statement-I is true, statement-II is false. 

(D) Statement-I is false, statement-II is true.

Answer 1

Correct option  (A) Statement-I is true, statement-II is true, statement- II is the correct explanation of statement-I.

Explanation:

Statement-II ∆G = ∆H – T∆S

∆H for formation of point defect > 0

∆S > 0

So hence increasing T leads to decrease in G

So increasing temperature, we will get more point defect.

Statement-II is explaining statement-I