JEE Main 2026 — Chemical Equilibrium Question with Solution

For the reaction, ${\mathrm{N}}_2{\mathrm{O}}_4\rightleftharpoons 2{\mathrm{NO}}_2$, graph is plotted as shown below. Identify correct statements.
A. Standard free energy change for the reaction is $-5.40\mathrm{kJ}{\mathrm{mol}}^{-1}$.
B. As $\Delta {\mathrm{G}}^{\ominus }$ in graph is positive, ${\mathrm{N}}_2{\mathrm{O}}_4$ will not dissociate into ${\mathrm{NO}}_2$ at all.
C. Reverse reaction will go to completion.
D. When 1 mole of ${\mathrm{N}}_2{\mathrm{O}}_4$ changes into equilibrium mixture, value of $\Delta {\mathrm{G}}^{\ominus }=-0.84\mathrm{kJ}{\mathrm{mol}}^{-1}$
E. When 2 mole of ${\mathrm{NO}}_2$ changes into equilibrium mixture, $\Delta {\mathrm{G}}^{\ominus }$ for equilibrium mixture is $-6.24\mathrm{kJ}{\mathrm{mol}}^{-1}$.

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