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Fast and Slow Step Reactions

Posted: Wed Mar 11, 2020 5:16 pm
by Lizette Noriega 1H
Hello,

What is the difference between a fast and slow step reaction? What does this information tell us with regard to solving problems?

Re: Fast and Slow Step Reactions

Posted: Wed Mar 11, 2020 5:54 pm
by jisulee1C
The slow step is the rate determining step and therefore we use the slow step when determining the rate of the reaction mechanism.

Re: Fast and Slow Step Reactions

Posted: Wed Mar 11, 2020 5:56 pm
by SimranSangha4I
the difference is that the slow step is considered the determining step, and that is what we use when we are trying to find the rate of a mechanism.

Re: Fast and Slow Step Reactions

Posted: Thu Mar 12, 2020 4:43 pm
by Jessica Booth 2F
The slow step is the step with the highest activation energy. With regard to solving problems we use the slow step to determine if a given mechanism is correct for a reaction and to determine the order and rate law of a reaction.

Re: Fast and Slow Step Reactions

Posted: Thu Mar 12, 2020 5:39 pm
by Connie Chen 1E
The slow step can be thought of as a funnel. Water can only flow through as fast as the neck of the funnel allows. Similarly, a reaction can only occur as quickly as the slow step proceeds. Therefore, it can also be thought of as the rate determining step. The fast steps are much faster than the slow step and generally have no effect on the overall rate of the reaction.

Re: Fast and Slow Step Reactions

Posted: Thu Mar 12, 2020 5:53 pm
by aishwarya_atmakuri
The slow step is the rate determining step. The fast step could be before or after the sloe step.