Order of reactions?


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mhuang 1E
Posts: 22
Joined: Fri Sep 29, 2017 7:05 am

Order of reactions?

Postby mhuang 1E » Mon Feb 26, 2018 10:17 pm

Could someone clarify what exactly is zero, first and second order reactions?

Mia Navarro 1D
Posts: 52
Joined: Fri Sep 29, 2017 7:04 am

Re: Order of reactions?

Postby Mia Navarro 1D » Mon Feb 26, 2018 11:39 pm

Zero is when the rate does not depend on the reactant concentration.
First is when the rate is proportionate to the reactant concentration.
Second is when the rate is proportionate to the square of the reactant concentration.

Tiffany Dao 1A
Posts: 32
Joined: Fri Sep 29, 2017 7:05 am

Re: Order of reactions?

Postby Tiffany Dao 1A » Tue Feb 27, 2018 9:37 am

It's easy to determine what n (the order) equals if you add up all the powers of the concentrations. Add the products' powers together and subtract the reactants' powers .

Harrison Wang 1H
Posts: 50
Joined: Fri Sep 29, 2017 7:07 am

Re: Order of reactions?

Postby Harrison Wang 1H » Tue Feb 27, 2018 11:21 am

Zero - rate of reaction is equal to rate constant k
1st order - depends on only ONE reactant concentration
2nd order - depends on two different reactants or one reactant squared


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