The standard reduction potentials for two half-cell reactions are given below. {\Cd}^{2+}(\aq)+2 e^{-}\to{\Cd}(\s); \E^\circ=-0.40 {\V} {\Ag}^{+}(\aq)+e^{-}\to{\Ag}(\s), \E^\circ=0.80 {\V} The standard free energy change for the reaction 2 {\Ag}^{+}(\aq)+ {\Cd}(\s) \to 2 {\Ag}(\s)+ {\Cd}^{2+}(\aq) is given by

Manipal Entrance Test 2018 Chemistry Paper

Question : 19 of 50

Marks: +1, -0

The standard reduction potentials for two half-cell reactions are given below.
Cd2+(aq)+2e−→Cd(s); E°=−0.40V
Ag+(aq)+e−→Ag(s), E°=0.80V
The standard free energy change for the reaction 2Ag+(aq)+Cd(s)→2‌Ag(s)+Cd2+(aq) is given by

115.8 kJ
- 115.8 kJ
- 231.6 kJ
231.6 kJ

Validate

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