Question
Chemistry Question on Electrochemistry
The standard e.m.f. of a galvanic cell involving cell reaction with n = 2 is found to be 0.295 V at 25ºC. The equilibrium constant of the reaction would be
A
4.0 × 1012
B
1.0 × 102
C
1.0 × 1010
D
2.0 × 1011
Answer
1.0 × 1010
Explanation
Solution
The equilibrium constant of the galvanic cell reaction with n = 2 and a standard e.m.f. of 0.295 V at 25ºC is 4.0 × 10¹².