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Can someone explain what second order of mechanism is Because it's not the same as order of reactions... Does the second order of mechanism mean there is 2 parts of a mechanism or 2 reactant shown in the rate equation that I posted a picture of
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Original post by Jshek
Can someone explain what second order of mechanism is Because it's not the same as order of reactions... Does the second order of mechanism mean there is 2 parts of a mechanism or 2 reactant shown in the rate equation that I posted a picture of

"second order mechanism" merely means that the overall order is 2. In the example you quote, it is 1st order WRT C4H9Br and 1st order WRT OH-. Overall, 1+1=2 i.e. 2nd order overall. The slow step involves 1 particle of C4H9Br colliding with one particle of OH-.

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