Question

The standard cell potential (e°cell) of the reaction below is +1.34 v. the value of δg° for the reaction is ________ kj/mol. 3 cu (s) + 2 mno4 - (aq) + 8h+ (aq) → 3 cu2+ (aq) + 2 mno2 (s) + 4 h2o (l)

Answer 1

E°(cell) = +1.34v
Faraday constant F= 96485C/mol
moles of electrons transfered n=6
ΔG° = -nFEo(cell)
=-6×964851.34
=-7.76×105 J/mol = -776kJ/mol