## Predicting Standard Potential

Boltzmann Equation for Entropy: $S = k_{B} \ln W$

605005476
Posts: 2
Joined: Fri Sep 28, 2018 12:21 am

### Predicting Standard Potential

So I understand that to get the standard potential of the cell you need to break it up into half reactions and find the standard cell potential of each reaction and then use the formula Ecell=Ecathode-Eanode. Given just the cell diagram, I do not understand how to find each standard E. I can find one of the values of E in the electrochemical series table, but I don't understand how to find standard E when it is not in the table.

Daniel Honeychurch1C
Posts: 109
Joined: Thu Jul 11, 2019 12:15 am

### Re: Predicting Standard Potential

All the standard reduction potentials are in the appendix of the textbook. You have to use the cell diagram to write the half reactions and look up the standard reduction potentials.

KDang_1D
Posts: 127
Joined: Fri Aug 30, 2019 12:15 am
Been upvoted: 1 time

### Re: Predicting Standard Potential

Do you have an example of a problem? I don't believe you'll never have to come up with the Eº values on your own since they are experimentally derived values. The only one might be a hydrogen electrode, which is 0V since it's the baseline.

Return to “Third Law of Thermodynamics (For a Unique Ground State (W=1): S -> 0 as T -> 0) and Calculations Using Boltzmann Equation for Entropy”

### Who is online

Users browsing this forum: No registered users and 1 guest