The standard reduction potentials of lithium metal and chlorine gas are as follows:
Reaction Reduction potential
In a galvanic cell, the two half-reactions combine to
Calculate the cell potential of this reaction under standard reaction conditions.
where n is the number of moles of electrons transferred and F=96,500J/V⋅mol e− is the Faraday constant.
Reduction takes place at the cathode: Cl2(g) + 2e- =>2Cl-(aq) Eº=+1.36 V
Oxidation takes place at the anode: Li(s) => Li+(aq) + e- Eº=-3.04 V
Ecell = Ecathode – Eanode
Ecell = 1.36 – (-3.04) = 4.4 V