## Arrhenius Equation question

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

JeremyPark14B
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### Arrhenius Equation question

When finding the activation energy with the arrhenius equation in a temperature change, we use ln(k1/k2) = Ea/R (1/T2 - 1/T1).

Will k2 and k1 both always be given? If only one is given, how do we find the other?

Chem_Mod
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### Re: Arrhenius Equation question

Both values for k would have to be given. You can only solve an equation like this with one unknown.

klarratt2
Posts: 60
Joined: Fri Sep 28, 2018 12:16 am

### Re: Arrhenius Equation question

This equation can also be used to compare k1 and k2, like in question 7E.3 (7th edition). But there will always be only one missing variable, everything else will be given.