## Forward and reverse reaction rates

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

Malia Shitabata 1F
Posts: 127
Joined: Sat Aug 17, 2019 12:17 am

### Forward and reverse reaction rates

For A+B->C+D, the forward rate is k[A][B] and for the reverse reaction C+D->A+B, the rate is k'[C][D]. Why is it k' as opposed to just k?

Kevin Antony 2B
Posts: 99
Joined: Sat Sep 07, 2019 12:16 am

### Re: Forward and reverse reaction rates

There is a different rate for both the forward and reverse reactions so we use k and k'.

Aman Sankineni 2L
Posts: 103
Joined: Fri Aug 30, 2019 12:17 am

### Re: Forward and reverse reaction rates

We use k vs k' to differentiate between the rates for forward and reverse reactions.

Nathan Nakaguchi 1G
Posts: 102
Joined: Wed Sep 18, 2019 12:22 am
Been upvoted: 1 time

### Re: Forward and reverse reaction rates

k and k' have different numerical values, it is not necessarily a derivative or anything like that. Its the same as just arbitrarily writing k(forward) and k(reverse) they are both rate constants but they aren't the same number.

Maya Pakulski 1D
Posts: 105
Joined: Thu Jul 11, 2019 12:17 am

### Re: Forward and reverse reaction rates

k' signifies the reverse reaction rate specifically.