(a)
Interpretation:
An equation for the temperature variation of E0cell should be derived.
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
Also,
Here,
(b)
Interpretation:
The cell potential of a Daniel cell at 500C under standard conditions should be determined.
Concept introduction:
The cell reaction for a Daniel cell is
The value of Ecellunder non-standard conditions can be determined by Nernst equation.
Here,
E − cell potential
E0 − standard cell potential
R − universal gas constant
T − temperature in Kelvin
n − number of electrons transferred
F − Faraday constant
Q − reaction quotient
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General Chemistry: Principles and Modern Applications (11th Edition)
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