## arrhenius eqn.

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

Mallika Singh 1G
Posts: 99
Joined: Sat Aug 24, 2019 12:16 am

### arrhenius eqn.

for t1 and t2, should t1 always be the bigger temperature?

Ipsita Srinivas 1K
Posts: 50
Joined: Mon Jun 17, 2019 7:24 am

### Re: arrhenius eqn.

Do you mean the van't Hoff equation?

Ipsita Srinivas 1K
Posts: 50
Joined: Mon Jun 17, 2019 7:24 am

### Re: arrhenius eqn.

In either case though, you should be able to take the temperature difference either way you wanted.

Sebastian Lee 1L
Posts: 157
Joined: Fri Aug 09, 2019 12:15 am
Been upvoted: 1 time

### Re: arrhenius eqn.

I assume you are referring to the derivation of the Arrhenius equation in which $ln\frac{k2}{k1}=\frac{A_{E}}{R}[\frac{1}{T_{1}}-\frac{1}{T_{2}}]$. It doesn't matter what T1 or T2 are as long as they correspond to the correct k1 and k2. So if you want to find what the rate constant is at a higher temperature, then you would be finding k2 and T2 which is the higher temperature. It doesn't matter since the signs will cancel out anyways.