Ncert Exercises & Solutions

Can E⁰_cell or $∆_{r}$ G for cell reaction ever be equal to zero?

No, otherwise the reaction become non-feasible.

The reaction is feasible only at E⁰_cell = positive or

∆_{r}

G⁰ = negative .

when E⁰ =

∆_{r}

G⁰ = 0 the reaction reaches at equilibrium.