(a)
Interpretation:
The value ofE0cell should be determined.
Concept introduction:
In the special case in which the reactants and products are in their standard states; the standard Gibbs energy change per mole of reaction is given by the following relation:
Here, z is number of electrons transferred, F is Faraday’s constant and
For a reaction, the Gibbs free energy can also be calculated as follows:
(b)
Interpretation:
The value of E0 for the reduction of CO2 into methanol should be calculated.
Concept introduction:
In an
If oxidation takes place on an electrode, that electrode is called anode. The species in that electrode remove electrons and itself gets oxidized.
If reduction takes place on an electrode, that electrode is called cathode. The species in that electrode absorbs electrons and itself gets reduced.
The electrode potential of cell can be calculated as follows:
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Generl Chem Looself&mod Mst/et&stdy Crd Pkg, 11/e
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