For the reaction, N2O4 2NO2, graph is plotted as shown below. Identify correct statements. A. Standard free energy change for the reaction is –5.40 kJ mol –1. B. As AG in graph is positive, N2O4 will

Question

For the reaction, N2O4 2NO2, graph is plotted as shown below. Identify correct statements. A. Standard free energy change for the reaction is –5.40 kJ mol –1. B. As AG in graph is positive, N2O4 will not dissociate into NO2 at all. C. Reverse reaction will go to completion. D. When 1 mole of N2O4 changes into equilibrium mixture, value of G = –0.84 kJ mol –1 E. When 2 mole of NO2, changes into equilibrium mixture, G for equilibrium mixture is –6.24 kJ mol –1. E. When 2 mole of NO2, changes into equilibrium mixture, G for equilibrium mixture is –6.24 kJ mol –1. G kJ mol –1 B 5.40 A 0.2 0.4 0.6 0.8 E 0.84 Constant p, T Fraction of N2O4 dissociated Choose the correct answer from the options given below :

(A) D and E only
(B) C and E only
(C) A and D only
(D) B and C only

Prashant Kotian · Accepted Answer

Correct answer: A. G kJ mol –1 B 5.40 A 0.2 0.4 0.6 0.8 E 0.84 Constant p, Fraction of N2O4 dissociated (A) rG° = G°B – G°A = +ve (B) rG° = +ve, N2O4 will partially dissociates into NO2. (C) For reverse reaction It is partially completed as there is equilibrium at E. (D) For 1 mole N2O4; rG° = – 0.84 kJ mol –1 (E) For 2 mole NO2 ; G° = – 5.4 – 0.84 = – 6.24 kJ mol –1. ALLEN 7 JEE-Main Exam Session-1 (January 2026)/21- 

💡 Solution & Explanation

Practice 22,000+ questions like this