3.4 Calculate the standard cell potentials of galvanic cell in which the following reactions take place:
Calculate the and equilibrium constant of the reactions.
The galvanic cell of the given reaction is shown below :-
We can know about the electrode potential of Fe and Ag with the help of table of standard electrode potential.
We have :
or
or
Now consider :
or
Now for equilibrium constant :
or
or
Thus