Rate laws


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chemstudent_1K
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Joined: Fri Sep 25, 2015 3:00 am

Rate laws

Postby chemstudent_1K » Sun Feb 14, 2016 9:07 pm

Are differential rate laws used only for initial reaction rates?

Annie Qing 2F
Posts: 28
Joined: Fri Sep 25, 2015 3:00 am

Re: Rate laws

Postby Annie Qing 2F » Sun Feb 14, 2016 9:33 pm

From what I understand, I think for our purposes, yes.
While differential rate laws in theory simply is the rate as a function of concentration (and we could experimentally measure how the concentration measures in relation to time), the method of initial rates is the easiest. Because t is very close to 0, we know fairly accurately the concentration and the only unknowns are k and the exponents.
This makes for a doable calculation.


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