Electrochemistry — Chemistry STD 12 Science — Question

$
K =\frac{[ C ]^c \times[ D ]^d}{[ A ]^a \times[ B ]^d}
$
(ii) If $\Delta G^0$ is the standard Gibbs free energy change at temperature $T$ then, $\Delta G^0=-$ RTInK $=-2.303$ RT $\log _{10} K$
(iii) From electrochemical data, if $E_{\text {cell }}^0$ is the standard cell potential and $K$ is the equilibrium constant for the cell reaction at a temperature $T$, then,
$
E_{\text {cell }}^0=\frac{0.0592}{n} \log _{10} K
$