Posted: Mon Feb 19, 2018 12:23 pm
Suppose two redox couples have negative potentials, is there any case in which the more negative one can undergo reduction?
Re: oxi/red potentials
Posted: Mon Feb 19, 2018 2:41 pm
No there won't. If there are two negative reduction potentials, the more negative one will be reduced and the other will be oxidized, even if it isn't as favorable. The transferred electrons will always cancel out of the overall reaction, so one half reaction must gain electrons and the other must lose electrons.