## 15.61

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

Matthew Lee 3L
Posts: 51
Joined: Fri Sep 29, 2017 7:07 am

### 15.61

In the solutions manual for this problem, when it is setting up the equation why do you multiply the 1/T in (1/T - 1/T') by T/T and the 1/T' by T'/T' to get
((T' - T)/(TT'))? Why can't you just leave it as (1/T - 1/T')?

Jana Sun 1I
Posts: 52
Joined: Sat Jul 22, 2017 3:00 am

### Re: 15.61

That's a good question. I don't know why they changed it around. I solved it by leaving it as (1/T - 1/T') and I got the same answer.

Matthew Lee 3L
Posts: 51
Joined: Fri Sep 29, 2017 7:07 am

### Re: 15.61

Thank you!

Jana Sun 1I
Posts: 52
Joined: Sat Jul 22, 2017 3:00 am

### Re: 15.61

No problem! Also, in 15.63, we use the same equation but they kept the term as (1/T - 1/T'), so I really don't know why they felt it was necessary to change the it to ((T' - T)/(TT')).