1.

The cell voltage of a galvanic cell becomes zero after using for some tme because

Answer»

All the FREE ELECTRONS are used up
Oxidationpotential of the two half cell become different
REDUCTION potential of the two half cells become equal
Oxidation potentials of two half cells become equal in magnitude but opposite in sign.

Solution :Since `E_("red")prop[M^(n+)]`
`THEREFORE` when current is DRAWN the conc. Of eec trolytic solution changes and hence the reduction potential.


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