E equations

Moderators: Chem_Mod, Chem_Admin

Miranda 1J
Posts: 51
Joined: Fri Sep 29, 2017 7:06 am

E equations

Postby Miranda 1J » Sun Feb 18, 2018 5:35 pm

What’s difference between the two equations for E? (E = E° - (RT/nF)lnQ and E = E° - (.05916 V/n)logQ).

Chris Pleman 3E
Posts: 51
Joined: Thu Jul 27, 2017 3:01 am
Been upvoted: 2 times

Re: E equations

Postby Chris Pleman 3E » Sun Feb 18, 2018 5:40 pm

There isn't. Both equations are equal to each other, one simply uses a natural log, and the other uses a log base 10 and simplifies/integrates the constant into the equation required to make both equations equal.

Carlos Gonzales 1H
Posts: 50
Joined: Fri Sep 29, 2017 7:05 am
Been upvoted: 1 time

Re: E equations

Postby Carlos Gonzales 1H » Sun Feb 18, 2018 6:06 pm

As mentioned above, both equations are the same except for the fact that one uses base e and the other uses base 10. The equation with base 10 is more typically used because pH is based on a log base 10 scale.

Arshpreet Sandhu 1B
Posts: 32
Joined: Thu Jul 27, 2017 3:00 am

Re: E equations

Postby Arshpreet Sandhu 1B » Sun Feb 18, 2018 7:28 pm

One uses ln (natural log) and the other uses log base of 10

Return to “Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)”

Who is online

Users browsing this forum: No registered users and 1 guest