The emf of the cell Zn|Zn2+(0.1M) || Fe2+|Fe(0.01M) is 0.2905 V. Equilibrium constant for the cell reaction is
E=E∘−0.0591n log Q 0.2905=E∘−0.0591nlog[0.10.01] E∘=0.2905+0.0295=+0.32 V Therefore 0.32=0.05912log K K=100.320.0295
The EMF of the cell
Zn|Zn2+(0.01M)||Fe2+(0.001M)|Fe at 298K is 0.2905 then the value of equilibrium constant for the cell reaction is :