Write the Nernst equation and emf of the following cell at 298 K.
(i) For the given cell, the half-cell reactions will be given as below:
At anode Mg ------> {{Mg}^{2+}} + {{2e}^{-}}
At cathode {{Cu}^{2+}} + {{2e}^{-}} ------> Cu
Therefore, the overall cell reaction will be
Mg + {{Cu}^{2+}} -------> {{Mg}^{2+}} + Cu
The Nernst equation is
