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Which Step is Slower?

Posted: Mon Mar 05, 2018 1:15 pm
by lizzygaines1D
when going through reaction mechanisms, how can you determine which step is slower?

Re: Which Step is Slower?

Posted: Mon Mar 05, 2018 1:17 pm
by Ethan-Van To Dis2L
The slower step is which ever reaction shows the rate law.

Re: Which Step is Slower?

Posted: Mon Mar 05, 2018 2:09 pm
by Rana YT 2L
The slow step is also the step with the largest activation energy

Re: Which Step is Slower?

Posted: Mon Mar 05, 2018 2:13 pm
by Jesse_torres2H
The slowest step in a reaction is the one with the higher activation energy.

Re: Which Step is Slower?

Posted: Mon Mar 05, 2018 2:21 pm
by Yutian Zhao -1J
As the slowest step always determines the overall reaction, find the elementary step whose rate law is the same as the overall reaction rate law, then that elementary step would be the slowest and be the rate determining step. Hope it helps.

Re: Which Step is Slower?

Posted: Mon Mar 05, 2018 2:22 pm
by aaron tang 2K
You can determine the slowest step by the determination rate or the part of the graph that requires the most activation energy.

Re: Which Step is Slower?

Posted: Mon Mar 05, 2018 2:29 pm
by Mitch Mologne 1A
Many times, a problem will give you mechanisms, and in turn tell you explicitly which step is the slow mechanism.

Re: Which Step is Slower?

Posted: Tue Mar 06, 2018 12:31 am
by Jennifer Ho 1K
Usually the problem will tell you which step in the mechanism is the slow step, but if it asks for which step is slow, you just need to find which step matches the overall rate law.

Re: Which Step is Slower?

Posted: Tue Mar 06, 2018 12:42 pm
by lizzygaines1D
Okay this clarifies so much. thank you!