)p is temperature coefficient. ∴ΔS=2×96500×(−6.5×10−4)Vdeg−1 ΔS=−125.064Vdeg−1 For 1 F ,ΔS=
−125.064Vdeg−1
2
ΔS=−62.53Vdeg−1 ΔG=−nFEcell For the given reaction, n=2 ΔG=−2×96500×0.675 ΔG=−130333J As, ΔG=ΔH−TΔS On substituting values of ΔG,ΔS and T. we get, ΔH=−167.6kJ For 1F, ΔH=