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Dr. Lavelle said that when you are just given two half reactions to reverse the one with the smaller E value, so that the cell potential is positive, meaning electrons flow left to right. What are the effects of a reversing the half reaction with a larger E?
Reversing the half reaction with the larger E would result in the full reaction having a negative cell potential. If a reaction has a negative cell potential, it will not be spontaneous and therefore not occur naturally.
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