Question
Question: \(\Delta Gº\) for the reaction \(Cu^{2 +} + Fe \rightarrow Fe^{2 +} + Cu\) is (Given: \(Eº_{cu^{2 +...
ΔGº for the reaction Cu2++Fe→Fe2++Cu is
(Given: Eºcu2+∣Cu=+0.34V,EºFe2+∣Fe=−0.44V)
A
11.44kJ
B
180.8KJ
C
150.5KJ
D
28.5KJ
Answer
150.5KJ
Explanation
Solution
Eºcell=EºCu2+/Cu−EºFe2+/Fe
=0.34V−(−0.44)V=0.78V
ΔGº=−nFEºcell
=−2×96500×0.78=150540Jor150.5kJ