The Change in Free Energy for a Reaction G, Depends on the Stoichiometric Coefficients Used in Writing the Depends
The change in free energy for a reaction, G, depends on the stoichiometric coefficients used in writing the reaction, but cell potentials, E, do not depend on these coefficients. Which statement accounts for this difference?
A) These quantities ( G and E) are not related, so this difference is not an issue.
B) The free-energy change is defined for general reactions, and the electromotive force is defined for electrochemical reactions, so this difference is not an issue.
C) The difference is not relevant because the units differ: kJ/mol for G, and V for E.
D) The change in free energy depends on both the reaction and the amount of material reacting, while the cell potential only depends on the cell composition.
E) The statement is false. G does not depend on the stoichiometric coefficients.
Correct Answer:
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