The equilibrium constant for a cell reaction, Cu(g) + 2Ag^+(aq) → Cu^2+(aq) + 2Ag (s) is 4 × 10^16. Find E° (cell)for the cell reaction.(a) 0.63 V(b) 0.49 V(c) 1.23 V(d) 3.24 VThis question was addressed to me in my homework.My doubt is from Electrochemistry in chapter Electrochemistry of Chemistry – Class 12

The equilibrium constant for a cell reaction, Cu(g) + 2Ag^+(aq) → Cu

1.	The equilibrium constant for a cell reaction, Cu(g) + 2Ag^+(aq) → Cu^2+(aq) + 2Ag (s) is 4 × 10^16. Find E° (cell)for the cell reaction.(a) 0.63 V(b) 0.49 V(c) 1.23 V(d) 3.24 VThis question was addressed to me in my homework.My doubt is from Electrochemistry in chapter Electrochemistry of Chemistry – Class 12
Answer» Right CHOICE is (B) 0.49 V Explanation: GIVEN, equilibrium constant KC = 4 × 10^16 E° (cell) = \(\frac{0.059}{2}\)log10 Kc E°(cell) = \(\frac{0.059}{2}\)log10 (4 × 10^16)=0.49V.

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