Example 15.7

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Nha Dang 2I
Posts: 53
Joined: Fri Sep 29, 2017 7:07 am

Example 15.7

Postby Nha Dang 2I » Fri Mar 16, 2018 3:10 am

This asks to derive the rate law implied by the mechanism, and confirm that it matches the observed rate law for the rate of decomposition of O3. I understand up to the substitution of [O], but can someone explain how they got the 2?

Edit: I understand how that they got 2 by multiplying by the common denominator, but are you able to ignore the k2[O3] before that step? Meaning, there wouldn't be the 2?

Justin Yu 3H
Posts: 36
Joined: Fri Sep 29, 2017 7:07 am

Re: Example 15.7

Postby Justin Yu 3H » Fri Mar 16, 2018 11:15 am

If you're referring to how they got the net rate of decomposition for O3 after substituting in O, they honestly just added everything on that side together. The term k1[O3], when multiplied by the denominator of the other terms, will cancel the middle term out and double the last term, resulting in a coefficient of two.

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