Chemical EquilibriumHard
Question
For a cell reaction involving a two-electron change, the standard e.m.f. of the cell is found to be 0.295 V at 25oC. The equilibrium constant of the reaction at 25oC will be
Options
A.29.5 × 10-2
B.10
C.1 × 1010
D.1 × 10-10
Solution
The equilibrium constant is related to the standard emf of cell by the expression
log K = E0cell ×
= 0.295 × 
log K =
= 10 or K = 1 × 10-10
log K = E0cell ×
= 0.295 × log K =
= 10 or K = 1 × 10-10Create a free account to view solution
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