Question
Chemistry Question on Equilibrium Constant
If the standard electrode potential for a cell is 2 V at 300 K, the equilibrium constant (K) for the reaction Zn(s)+cu2+(aq)<=>Zn2+(aq)+Cu(s) at 300 K is approximately. (R=8JK−1mol−1,F=96000Cmol−1)
A
e160
B
e320
C
e−160
D
e−80
Answer
e160
Explanation
Solution
ΔG∘=−RTlnk=−nFEcell∘
Ink=R×Tn×F×E∘=8×3002×96000×2
Ink = 160
k=e160