Question

Statement-I: Due to adiabatic free expansion, temperature of a real gas always increases. 

Statement-II: If a real gas is at inversion temperature then no change in temperature is observed in adiabatic free expansion.

(A) Statement-I is true, statement-II is true and statement-II is correct explanation for statement-I 

(B) Statement-I is true, statement-II is true and statement-II is NOT the correct explanation for statement-I 

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

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

Answer 1

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

Explanation:

∆H = nC_p∆T

(For ideal gas, ∆H is a function of compressor alone)