## Arrhenius equation and activation energies

Arrhenius Equation:

Jorja De Jesus 2C
Posts: 121
Joined: Sat Jul 20, 2019 12:15 am

### Arrhenius equation and activation energies

Does the Arrhenius equation find the activation energy and then could the equation be used on the activation energy? Also what does exp stand for in the Arrhenius equation?

JamieVu_2C
Posts: 108
Joined: Thu Jul 25, 2019 12:16 am

### Re: Arrhenius equation and activation energies

Referring to homework 7D.1 as an example, the problem gives you 2 rate constants at 2 different temperatures and asks you to find the activation energy. In this case, you would rearrange the Arrhenius equation as a difference of T1 and T2 to get . Then once you plug the values in, you could get the value for Ea. In the constants and equations sheet, exp stands for e^.
Last edited by JamieVu_2C on Sat Mar 14, 2020 8:42 pm, edited 1 time in total.

J Medina 2I
Posts: 102
Joined: Wed Sep 25, 2019 12:17 am

### Re: Arrhenius equation and activation energies

Yes, if given all other information, the Arrhenius equation can be used to find the activation energy, Ea. I think exponential could be referring to when both sides are raised to the power of e which cancels the ln on the left and then raises the right side to the power of e.