(a) ΔG∘=−nFE∘cell
⇒−43600=−2×96500×E∘cell
E∘cell = 0.226 V
Ecell=E∘cell−0.0591n log [H+]2[CI−]2[H2]
= 0.226−0.05912log(0.1)2(0.1)2(1)
= 0.226−0.05912log10−4
= 0.226−0.05912×−4
= 0.226 + 0.118 = 0.344 V
(b) Cell which converts the chemical energy, produced by the combustion of fuels into electrical energy is called fuel cell.
Ex : H2−O2 fuel cell.
Advantages :
(i) High efficiency
(ii) Non-polluting