## Cell Potential

Lauryn Jordan 1F
Posts: 76
Joined: Fri Sep 29, 2017 7:07 am

### Cell Potential

when do you use each of the equations and what is the difference?
E = E° -RT/nF * ln Q
E = E° -0.05916 V / n * log Q

Riya Pathare 2E
Posts: 74
Joined: Sat Jul 22, 2017 3:01 am
Been upvoted: 1 time

### Re: Cell Potential

You can use either of the equations cause they are the same. The second equation essentially combines the R, T, and F to get 0.05916 and then takes into account the change from ln to log. Generally log is more efficient to use for biochemistry purposes rather than ln but both are valid.

nathansalce 3e
Posts: 52
Joined: Thu Jul 27, 2017 3:01 am

### Re: Cell Potential

since R T and F are all constants in standard conditions, these three constants can be multiplied and calculated to be 0.05916, just to simplify the process of calculations.

aaron tang 2K
Posts: 49
Joined: Thu Jul 27, 2017 3:01 am

### Re: Cell Potential

Both of these equations are the same. constants R, T, F = to .05916

Abby Ellstrom 1I
Posts: 53
Joined: Fri Sep 29, 2017 7:04 am

### Re: Cell Potential

These equations are essentially the same so you can use them interchangeably depending on which information you have.

andrewr2H
Posts: 29
Joined: Fri Sep 29, 2017 7:05 am

### Re: Cell Potential

These equations are equivalent to each other, it is just that one is simplified.

Sophia Bozone 2G
Posts: 51
Joined: Fri Sep 29, 2017 7:07 am

### Re: Cell Potential

These equations can be used in the same situation, however the one with a number already in it has been simplified with the entry of variables already.

Ashley Macabasco 2K
Posts: 30
Joined: Fri Sep 29, 2017 7:05 am

### Re: Cell Potential

Because R, T and F are constants at standard conditions, the second equation is the same as the first equation with the constants computed into a single constant.

Warda Sahib 2J
Posts: 29
Joined: Thu Jul 13, 2017 3:00 am

### Re: Cell Potential

They're the same, you can use either

DamianW
Posts: 35
Joined: Fri Sep 29, 2017 7:06 am

### Re: Cell Potential

when you do you switch the signs of given cell potentials?