## Arrhenius Equation

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

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

### Arrhenius Equation

What is ln [A] in the Arrhenius equation, ln kr = ln A - (Ea/RT)

Sydney Myers 4I
Posts: 100
Joined: Fri Aug 09, 2019 12:17 am

### Re: Arrhenius Equation

That equation is simply derived from a different one where the activation energy and gas constant and etc are all to the power of e. In order to make it a linear equation, it can be transformed into the one that you have typed. A is just the pre-exponential factor, its a constant.

Sukanya Mohapatra 2G
Posts: 100
Joined: Sat Aug 17, 2019 12:18 am
Been upvoted: 1 time

### Re: Arrhenius Equation

A is the pre-exponential factor. According to collision theory, A is the frequency of collisions in the correct orientation.

DLee_1L
Posts: 103
Joined: Sat Aug 17, 2019 12:17 am

### Re: Arrhenius Equation

Yeah, so A should be a decimal with 1 indicating that every collision results in a correct orientation and 0 indicating every time there is a collision, it is not in the correct orientation