Reduced/Oxidized based on Ecell


Moderators: Chem_Mod, Chem_Admin

Philomena 4F
Posts: 27
Joined: Wed Feb 27, 2019 12:16 am

Reduced/Oxidized based on Ecell

Postby Philomena 4F » Sun Mar 01, 2020 11:30 pm

I learned that the more positive Ecell refers to the reaction being reduced. If the given Ecell for two reactions have the same value, which will be considered oxidized/reduced?

Hui Qiao Wu 1I
Posts: 56
Joined: Fri Aug 30, 2019 12:16 am

Re: Reduced/Oxidized based on Ecell

Postby Hui Qiao Wu 1I » Mon Mar 02, 2020 12:04 am

Maybe you can look at the oxidation numbers.

connie 2C
Posts: 106
Joined: Thu Jul 11, 2019 12:17 am

Re: Reduced/Oxidized based on Ecell

Postby connie 2C » Mon Mar 02, 2020 12:07 am

is one of the E cell values under standard conditions?

Rohit Ghosh 4F
Posts: 99
Joined: Thu Jul 25, 2019 12:17 am

Re: Reduced/Oxidized based on Ecell

Postby Rohit Ghosh 4F » Sun Mar 08, 2020 5:13 pm

Yes, if there is a difference in concentrations or other factors, then this will contribute to which species is oxidized/reduced.

Robert Tran 1B
Posts: 118
Joined: Thu Jul 11, 2019 12:15 am

Re: Reduced/Oxidized based on Ecell

Postby Robert Tran 1B » Sun Mar 08, 2020 5:30 pm

If the Ecell is the same, the substance that is oxidized/reduced will depend on the concentration. The substance in lower concentration will be oxidized, while the substance present in higher concentration will usually be reduced.

Rosa Munoz 2E
Posts: 105
Joined: Wed Sep 18, 2019 12:21 am

Re: Reduced/Oxidized based on Ecell

Postby Rosa Munoz 2E » Sun Mar 08, 2020 6:53 pm

One with lower concentration will be oxidized

Charlene Datu 2E
Posts: 62
Joined: Wed Sep 11, 2019 12:16 am

Re: Reduced/Oxidized based on Ecell

Postby Charlene Datu 2E » Thu Mar 12, 2020 4:48 pm

Since the Ecell values are given under standard conditions, you would also have to take into account other factors such as the concentrations of the cathode and anode, as well as the temperature. The anode (oxidation reaction) will occur at the lower concentration of substrates, while the cathode (reduction reaction) will occur at the higher concentration of substrates.


Return to “Work, Gibbs Free Energy, Cell (Redox) Potentials”

Who is online

Users browsing this forum: No registered users and 3 guests