14.27, 6th Edition

Moderators: Chem_Mod, Chem_Admin

Posts: 29
Joined: Fri Sep 28, 2018 12:19 am

14.27, 6th Edition

Postby JeremyPark14B » Thu Feb 28, 2019 12:13 am

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)

Posts: 92
Joined: Fri Sep 28, 2018 12:24 am

Re: 14.27, 6th Edition

Postby Meachelle_Lum_1I » Thu Feb 28, 2019 12:18 am

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.

Return to “Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams”

Who is online

Users browsing this forum: No registered users and 1 guest