## Frequency Factors

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

Izzy Ick 4B
Posts: 20
Joined: Fri Sep 25, 2015 3:00 am

### Frequency Factors

In the Arrhenius Equation where do you get the values for A, the frequency factors?

Isabel Chu 2B
Posts: 22
Joined: Fri Sep 25, 2015 3:00 am

### Re: Frequency Factors

The frequency factor, A, corresponds to the correct orientation needed when the molecules collide for the reaction to occur.

Brenda Melano 3H
Posts: 27
Joined: Fri Sep 25, 2015 3:00 am

### Re: Frequency Factors

What would the units and size of values for A be? Would this value be given to us? In most of the examples, they don't provide any values for A... so I was wondering if there were any examples where we would have to use this parameter and figure out what it was based on the rxn somehow..