For the feasibility of a redox reaction in a cell, the emf should be

Question

For the feasibility of a redox reaction in a cell, the emf should be (A) positive (B) fixed (C) zero (D) negative

Tardigrade Admin · Accepted Answer

For spontaneous reaction Δ G should be negative Δ G°=n F E° where, Δ G°= Free energy charge E°= emf of the cell The value of Δ G° will be negative, if the value of E° is positive.

Q. For the feasibility of a redox reaction in a cell, the emf should be

positive

fixed

zero

negative

For spontaneous reaction $Δ G$ should be negative
$Δ G^{\circ} = n F E^{\circ}$
where, $Δ G^{\circ} =$ Free energy charge
$E^{\circ} =$ emf of the cell
The value of $Δ G^{\circ}$ will be negative,
if the value of $E^{\circ}$ is positive.

Q. For the feasibility of a redox reaction in a cell, the emf should be

positive

fixed

zero

negative

For spontaneous reaction ΔG should be negative ΔG∘=nFE∘ where, ΔG∘= Free energy charge E∘= emf of the cell The value of ΔG∘ will be negative, if the value of E∘ is positive.

For spontaneous reaction $Δ G$ should be negative
$Δ G^{\circ} = n F E^{\circ}$
where, $Δ G^{\circ} =$ Free energy charge
$E^{\circ} =$ emf of the cell
The value of $Δ G^{\circ}$ will be negative,
if the value of $E^{\circ}$ is positive.