Question
For a certain redox reaction in galvanic cell X _ (s) + Y ^ 2+ _ (aq) X ^ 2+ _ (aq) + Y _ (s) , E ^ cell is 0.0296\ V at 298\ K . What is equilibrium constant of reaction?
MHT CET
Chemistry
Electrochemistry
2026
MHT CET 2026 (18 April Shift 1)
MHT CET Chemistry Question (2026) — Solution
Options
- A. 1
- B. 10
- C. 100
- D. 1000
Answer
B. 10
Step-by-step solution
The relation between standard cell potential and equilibrium constant at 298\ K is given by: E^ _ cell = 0.0591 n K_c For the given reaction, the number of electrons transferred is n = 2. Substituting the given values: 0.0296 = 0.0591 2 K_c 0.0296 0.02955 K_c K_c = 0.0296 0.02955 1 K_c = 10^1 = 10 Answer: 10
Related: Chemistry — Electrochemistry · All PYQ Banks