ABC26PH0398 · Electrochemistry

Subject: Physical Chemistry · Chapter: Electrochemistry · Topic: Electrochemistry – General · Exam: GATE 2005-2021 · Marks: 2 · Difficulty: Medium

For the following reaction
\[ 2\mathrm{MnO}_{4}^{-}+5\mathrm{H}_{2}\mathrm{C}_{2}\mathrm{O}_{4}+6\mathrm{H}^{+} \rightarrow 2\mathrm{Mn}^{2+}+8\mathrm{H}_{2}\mathrm{O}+10\mathrm{CO}_{2} \]
\[ \mathrm{E}^{0}(\mathrm{MnO}_{4}^{-}/\mathrm{Mn}^{2+})=+1.51\,\mathrm{V} \text{ and } \mathrm{E}^{0}(\mathrm{CO}_{2}/\mathrm{H}_{2}\mathrm{C}_{2}\mathrm{O}_{4})=-0.49\,\mathrm{V}. \]
At 298 K, the equilibrium constant is:
(a)$10^{500}$
(b)$10^{338}$
(c)$10^{38}$
(d)$10^{833}$
Answer
Answer (as printed): B
Explanation
No explanation was printed for this question.

Open in whiteboard · Browse this chapter in the app