Question

which is correct sponteinity of a cell​

Answer 1

Answer:

For spontaneity of cell, the correct relation is \Delta GΔG = -ve and E^0=+veE

0

=+ve

Explanation:

The standard emf of a cell is related to Gibbs free energy by following relation:

\Delta G=-nFE^0ΔG=−nFE

0

\Delta GΔG = gibbs free energy

n= no of electrons gained or lost

F= faraday's constant

E^0E

0

= standard emf

when \Delta GΔG = +ve, reaction is non spontaneous

\Delta GΔG = -ve, reaction is spontaneous

\Delta GΔG = 0, reaction is in equilibrium

-ve=-nFE^0−ve=−nFE

0

E^0=+veE

0

=+ve