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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)

Respuesta :

E°cell =+1.34V
F= 96485C mol-1
3Cu(s) →3CU2+(aq) +6e-E°ck= -0.34V
2MnO4-(aq) +8H+(aq)+6e→2MnO2(s)+4H2O(l)/3CU(s) + 2MnO4-(aq)+8H+(aq)→3CU 2+((aq)+ 2MnO2(s)+4H2O (l) 
E°red= +1.68V/E°cell=+1.34V
ΔG° = -nFE°cell = -6×96485×1.34 = -775.7kJ/mol

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