To determine: The standard free energy change for the cell:
Explanation of Solution
In this reaction,
Half-cell reaction at the anode
Half-cell reaction at the cathode
Complete balanced cell reaction is:
Number of electrons taking part in this reaction is n=3
Now,
(b)
To determine:
The standard free energy change for the cell:
Explanation of Solution
In this reaction,
Half-cell reaction at the anode
Half-cell reaction at the cathode
The complete balanced cell reaction
Number of electrons taking part in this reaction is 6
Now,
(c)
To determine:
The standard free energy change for the cell:
Explanation of Solution
In this reaction,
Half-cell reaction at the anode
Half-cell reaction at the cathode
Complete balanced cell reaction:
Number of electrons taking part in this reaction is 2
Now,
Therefore, standard free energy changes are:
a. -385 kJ/mol,
b. -13.2 kJ/mol and
c. -83 kJ/mol
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Chemistry for Engineering Students
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