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Transition step

Posted: Mon Mar 06, 2017 4:42 pm
by Tara_Hekmati_3B
Is the slow step in electrophilic addition always the first step or the step with the highest activation energy barrier?

Re: Transition step

Posted: Mon Mar 06, 2017 5:44 pm
by Tara Ostad 1H
TA Andy said that for electrophilic addition that the slow step is always the first step.

Re: Transition step

Posted: Mon Mar 06, 2017 5:49 pm
by Sophia Rawson 1C
yes the first step is always slower because it involves breaking a bond and forming a high energy intermediate whereas in the second it only has to break that intermediate and form a new lower energy bond.

Re: Transition step

Posted: Thu Mar 16, 2017 11:18 pm
by veeksha25
But then if the first step's activation energy is lower than the second steps then why wouldn't it be the second step?