Cell reaction is spontaneous when

Question

Cell reaction is spontaneous when (A) E0red is negative (B) E0red is positive (C) Δ G0 is negative (D) Δ G0 is positive

Tardigrade Admin · Accepted Answer

When the value of Δ G0 is negative, the cell reaction is spontaneous. Δ G0=-nFE0 where, n = number of electrons take part F = Faraday constant E0= EMF of the cell Thus, for a spontaneous reaction, the EMF of the cell must be positive.

Q. Cell reaction is spontaneous when

$E_{re d}^{0}$ is negative

$E_{re d}^{0}$ is positive

$Δ G^{0}$ is negative

$Δ G^{0}$ is positive

When the value of $Δ G^{0}$ is negative, the cell reaction is spontaneous.
$Δ G^{0} = - n F E^{0}$
where, n = number of electrons take part
F = Faraday constant $E^{0} =$ EMF of the cell
Thus, for a spontaneous reaction, the EMF of the cell must be positive.

Q. Cell reaction is spontaneous when

Ered0​ is negative

Ered0​ is positive

ΔG0 is negative

ΔG0 is positive

When the value of ΔG0 is negative, the cell reaction is spontaneous. ΔG0=−nFE0 where, n = number of electrons take part F = Faraday constant E0= EMF of the cell Thus, for a spontaneous reaction, the EMF of the cell must be positive.

$E_{re d}^{0}$ is negative

$E_{re d}^{0}$ is positive

$Δ G^{0}$ is negative

$Δ G^{0}$ is positive

When the value of $Δ G^{0}$ is negative, the cell reaction is spontaneous.
$Δ G^{0} = - n F E^{0}$
where, n = number of electrons take part
F = Faraday constant $E^{0} =$ EMF of the cell
Thus, for a spontaneous reaction, the EMF of the cell must be positive.