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### Reactions with multiple reactants

Posted: Wed Mar 13, 2019 8:43 pm
I'm still a little confused on this concept on determining the rate. In lecture, we said if [A]0 >> [B]0 and [C]0 then rate = k'[A]^N. Why do we use k' instead of k?

### Re: Reactions with multiple reactants

Posted: Thu Mar 14, 2019 11:28 pm
bonnie_schmitz_1F wrote:I'm still a little confused on this concept on determining the rate. In lecture, we said if [A]0 >> [B]0 and [C]0 then rate = k'[A]^N. Why do we use k' instead of k?

k' is generally used instead of k to symbolize the rate of the reverse reaction, as to your specific question, A is probably in the products of the reaction you are looking at, which is why you would have k'. However, you would need to see the reaction to know this for sure. Do you have the given reaction?

### Re: Reactions with multiple reactants

Posted: Fri Mar 15, 2019 9:33 am
MackenziePerillo-1L wrote:
k' is generally used instead of k to symbolize the rate of the reverse reaction, as to your specific question, A is probably in the products of the reaction you are looking at, which is why you would have k'. However, you would need to see the reaction to know this for sure. Do you have the given reaction?

I think it was A + B + C --> P.