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### Topic: Rate Kinetics  (Read 3721 times)

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#### 21385

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##### Rate Kinetics
« on: June 23, 2008, 02:04:59 PM »

Question: Assuming the steady state of O (d[ O ]/dt=0), derive the rate equation.

Here's the answer: \

Can someone explain to me why it is 2k2[O3][ O ], rather than just k2[O3][ O ], without the 2?

Thanks a lot

#### tamim83

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##### Re: Rate Kinetics
« Reply #1 on: June 23, 2008, 04:00:01 PM »
The 2 is coming from the overall reaction that you are given.  The rate of O3 disappearing is (1/2) (dO3/dt)), which is equal to k2[O3]
• .  You then multiply each side by 2 to get rid of the 1/2.

#### 21385

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##### Re: Rate Kinetics
« Reply #2 on: June 29, 2008, 12:10:06 PM »
Perfect, thank you very much