## 15.67 6th Edition (Catalyst)

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

Schuyler_Howell_4D
Posts: 66
Joined: Fri Sep 28, 2018 12:28 am
Been upvoted: 1 time

### 15.67 6th Edition (Catalyst)

Why did they use Ea,cat=(75/125) instead of Ea,cat=(125-75) to help find the factor by which the rate of the reaction changed?

Chem_Mod
Posts: 19143
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 820 times

### Re: 15.67 6th Edition (Catalyst)

The idea is that you want to calculate the ratio of the rate constant k. You can use two Arrhenius equations and take the ratio or the solution manual used the law of log which also works