Moderators: Chem_Mod, Chem_Admin
Letty Liu 2C
- Posts: 105
- Joined: Fri Aug 09, 2019 12:16 am
When calculating standard potentials for electrodes and two redox reactions, do we just subtract the right from the left for electrodes but use standard Gibbs free energy for two redox reactions?
Justin Sarquiz 2F
- Posts: 106
- Joined: Fri Aug 30, 2019 12:15 am
To calculate the standard potential energy, you do Ecathode-Eanode. It is not always right minus left because someone could draw the anode on the right if he or she wanted to.
- Posts: 49
- Joined: Thu Jul 25, 2019 12:16 am
the cell diagram should always have the cathode on the right so your method should be correct but to avoid getting the wrong answer due to an error in the set up of the cell diagram remember that it is E cathode - E anode
- Posts: 117
- Joined: Sat Sep 14, 2019 12:17 am
And remember that because standard potential energy is an intensive property, we don't need to multiply by coefficients.
Jialun Chen 4F
- Posts: 108
- Joined: Sat Sep 07, 2019 12:16 am
Use the equation ECathode - EAnode; in a Galvanic cell, the standard setup is having anode on the left (oxidation) and cathode on the right (reduction).
Return to “Work, Gibbs Free Energy, Cell (Redox) Potentials”
Who is online
Users browsing this forum: No registered users and 2 guests