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14.27, 6th Edition

Posted: Thu Feb 28, 2019 12:13 am
by JeremyPark14B
Why do we have to do use delta G = -nFE? Why can't we just add the E values of the 2 half reactions that make up the U4+ +4e- -> U(s)

Re: 14.27, 6th Edition

Posted: Thu Feb 28, 2019 12:18 am
by Meachelle_Lum_1I
It’s because that equation is not the redox Reaction, but just another half reaction. So the reactions aren’t occurring at the same time as would the two half reactions and the overall redox reactions. We use G because G is a state function.