Nernst Equation:
Ecell = E°cell – RT[Zn2+]/ nF[Cu2+]
Galvanic cell reaction:
Zn(s)|Zn2+(aq)||Cu2+(aq)|Cu(s)
Reaction in Anode:
oxidation half-cell
Zn(s) → Zn2+ (aq)+ 2e
Reaction in Cathode:
reduction half-cell
Cu2+ (aq)+ 2e-→ Cu(s)
Complete Reaction Involved:
Zn(s) + Cu2+ (aq) → Zn2+(aq) +Cu(s)
Nernst Equation of the cell reaction:
Ecell = E°cell – 0.059/2[Zn2+]/[Cu2+]