Interpretation: The cell potential values indicating a spontaneous reaction and a non-spontaneous reaction need to be explained.
Concept Introduction: The relation between change in Gibbs free energy and cell potential is as follows:
Here, n is the number of electrons transferred in the reaction and F is Faraday’s constant.
Explanation of Solution
In an
The cell potential of an electrochemical cell is related to Gibbs free energy as follows:
Here,
For the value of
Therefore, the cell potential values must be positive for a spontaneous reaction and they must be negative for a non-spontaneous reaction.
Chapter 21 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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