(a)
Interpretation:
The value ofE0cell for the hydrogen-oxygen fuel cell should be calculated.
Concept introduction:
Reduction reaction of fuel cell;
Oxidation reaction of fuel cell;
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:
(b)
Interpretation:
The value of E0cell for the zinc-airbattery should be calculated.
Concept introduction:
Reduction reaction
Oxidation reaction
In an electrochemical cell, there are two electrodes that can be observed.
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:
(c)
Interpretation:
The value of E0cell for the magnesium-iodine battery should be calculated.
Concept introduction:
Reduction reaction
Oxidation reaction
In an electrochemical cell, there are two electrodes that can be observed.
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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General Chemistry: Principles and Modern Applications (11th Edition)
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