Page **1** of **1**

### Nernst Equation

Posted: **Thu Mar 14, 2019 9:16 am**

by **Kate_Santoso_4F**

There are two forms of the Nernst Equation given on the constants and formulas sheet. One is E(reaction) = E(standard) - (RT/nF)*lnQ and the other is E(reaction) = E(standard) - (0.05916V/n)*logQ. Can someone please explain what the difference is between these two forms of the equation and when you would use one over the other?

### Re: Nernst Equation

Posted: **Thu Mar 14, 2019 9:35 am**

by **Jeannine 1I**

I believe they will both give you similar answers, the second equation with a number in it is just the simplified version, where the (RT/F) is already calculated, given that the reaction is at the standard temperature 298 K.

Can anyone confirm this?

### Re: Nernst Equation

Posted: **Thu Mar 14, 2019 11:37 am**

by **Kavvya Gupta 1H**

The first equation is written is for any E reaction value at any temperature. The second one is specific to room temperature (25 degrees Celcius).