## activation energy units

Arrhenius Equation: $\ln k = - \frac{E_{a}}{RT} + \ln A$

Kyle Rex 1K
Posts: 50
Joined: Sat Aug 17, 2019 12:16 am

### activation energy units

does activation energy depend on the number of moles of something or is it a constant value for a certain reaction?

MingdaH 3B
Posts: 133
Joined: Thu Jul 11, 2019 12:17 am

### Re: activation energy units

Activation energy does not depend on the number of moles. If the number of moles goes up, then total energy goes up, as evidenced by the activation energy, but activation energy itself does not have anything to do with it.

Connie Chen 1E
Posts: 51
Joined: Mon Jun 17, 2019 7:24 am

### Re: activation energy units

To add on, the units of activation energy are joules per mole since this cancels out with the constant R.

aishwarya_atmakuri
Posts: 101
Joined: Sat Jul 20, 2019 12:15 am

### Re: activation energy units

The units for activation energy are joules/mol. Joules gives the energy and the moles makes it standard for the reaction.