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Topic: How do I write a Rate Equation?  (Read 6800 times)

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Offline Boxxxed

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How do I write a Rate Equation?
« on: January 22, 2011, 01:05:26 PM »

How do I write a rate equation for 2NO2+O3 ---> N2O5+O2 at 231K?

Isn't it experimentally determined?
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Offline Boxxxed

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Re: How do I write a Rate Equation?
« Reply #1 on: January 22, 2011, 01:08:30 PM »
I know the answer is

Rate = k ∙ [NO₂(g)] · [O₃(g)]

How do you arrive at this?
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Offline rabolisk

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Re: How do I write a Rate Equation?
« Reply #2 on: January 22, 2011, 02:16:58 PM »
You can't unless you are given more information.
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Offline opti384

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Re: How do I write a Rate Equation?
« Reply #3 on: January 23, 2011, 05:49:55 AM »
Quote from: Boxxxed on January 22, 2011, 01:08:30 PM
I know the answer is

Rate = k ∙ [NO₂(g)] · [O₃(g)]

How do you arrive at this?

It's mostly determined by experiments because some reactions go through many steps.
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