Subject: Physical Chemistry · Chapter: Chemical Equilibrium · Topic: Chemical Equilibrium – General · Exam: JAM 2001-2022 · Marks: 2 · Difficulty: Medium
For the reaction, $2 \mathrm{SO}_{2}+\mathrm{O}_{2} \rightleftharpoons 2 \mathrm{SO}_{3}$, the equilibrium constant $\mathrm{K}_{\mathrm{P}}=5.0$ at $207^{\circ} \mathrm{C}$. If the partial pressures of $\mathrm{SO}_{2}, \mathrm{O}_{2}$ and $\mathrm{SO}_{3}$ are $1.0 \times 10^{-3}, 0.20$ and $1.0 \times 10^{-4}$, respectively, then the Gibbs free energy of the reaction $\left(\Delta_{\mathrm{r}} \mathrm{G}\right)$ in $\mathrm{kJ} \mathrm{mol}^{-1}$ at $20^{\circ} \mathrm{C}$ is ____ [Given: $\mathrm{R}=8.314 \mathrm{J} \mathrm{K}^{-1} \mathrm{mol}^{-1}$ ]
Answer
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