UV catalyst

Arrhenius Equation:

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Jack Papciak 2F
Posts: 31
Joined: Fri Sep 29, 2017 7:06 am

UV catalyst

Postby Jack Papciak 2F » Tue Mar 13, 2018 9:37 pm

In class we did an example of catalysts where UV light helped convert oxygen to ozone. Is UV light the catalyst in this example or is it another chemical species?

Justin Chang 2K
Posts: 53
Joined: Fri Sep 29, 2017 7:04 am

Re: UV catalyst

Postby Justin Chang 2K » Tue Mar 13, 2018 11:00 pm

NO is the catalyst. The reaction needs to occur under UV light.

Justin Lau 1D
Posts: 51
Joined: Sat Jul 22, 2017 3:00 am

Re: UV catalyst

Postby Justin Lau 1D » Tue Mar 13, 2018 11:01 pm

UV light isn't a catalyst but something that provides energy to activate the reaction. NO is the catalyst in this reaction.

Justin Chang 2K
Posts: 53
Joined: Fri Sep 29, 2017 7:04 am

Re: UV catalyst

Postby Justin Chang 2K » Tue Mar 13, 2018 11:02 pm

This is the steps:
NO+1/2 O^2-->NO^2
NO^2--> NO + O (under UV light)
O + O^2 --> O^3

Overall: 3/2 O^2--> O^3

NO is the catalyst because it is first consumed, and then produced.
NO2 is the intermediate it is first produced, and then consumed.


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