ElectrochemistryMedium
Question
The standard reduction potential of Cu2+ / Cu and Cu2+ / Cu+ are 0.339V and 0.153 V respectively. The standard electrode potential of Cu+ / Cu half- cell is :
Options
A.0.184 V
B.0.827 V
C.0.525 V
D.0.490 V
Solution
Cu2+ + 2e → Cu ; - ᐃGo1
Cu2+ + e → Cu+ ; - ᐃGo2
Half recaction Cu+ + e → Cu ; - ᐃGo3 = - ᐃGo1 + ᐃGo2
or n × Eo3F = n1 Eo1 F - n2 Eo2 F
Eo3 =
=
= 0.525V
Cu2+ + e → Cu+ ; - ᐃGo2
Half recaction Cu+ + e → Cu ; - ᐃGo3 = - ᐃGo1 + ᐃGo2
or n × Eo3F = n1 Eo1 F - n2 Eo2 F
Eo3 =
=
= 0.525VCreate a free account to view solution
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