Forward and reverse reaction rates

Arrhenius Equation:

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

Forward and reverse reaction rates

Postby Malia Shitabata 1F » Fri Mar 06, 2020 2:39 pm

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

Postby Kevin Antony 2B » Fri Mar 06, 2020 2:53 pm

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

Postby Aman Sankineni 2L » Fri Mar 06, 2020 2:54 pm

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

Postby Nathan Nakaguchi 1G » Fri Mar 06, 2020 3:04 pm

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

Postby Maya Pakulski 1D » Fri Mar 06, 2020 5:06 pm

k' signifies the reverse reaction rate specifically.


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