1.

For the feasibility of a redox reaction in a cell, the e.m.f. should be

Answer»

POSITIVE
Fixed
Zero
Negative

Solution :Any redox reaction would occur SPONTANEOUSLY if the free energy change `(DeltaG)` is negative.
`DeltaG^(o)=-nFE^(o)`
Where n is the number of electrons INVOLVED, F is the value of faraday and `E^(o)` is the cell emf. `DeltaG^(o)` can be negative if `E^(o)` is positive.


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