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Friday Lecture

Posted: Sun Mar 04, 2018 9:37 pm
by Samira 2B
I understand the concept of intermediate species. I just do not get how just from the NO2 eqn and the rate eqn, we got that an intermediate species is needed. In the lecture notes, Lavelle states that "NO2 cannot form NO and CO2 so there must be an intermediate species" but in the eqn itself, there is a CO that helps form it? (Is it because the CO is a zero order?)

Re: Friday Lecture

Posted: Sun Mar 04, 2018 9:52 pm
by Caroline Cox 1H
Yes, it is because CO2 is zero order and therefore is not a factor that determines rate (aka not in the slow step).

Re: Friday Lecture

Posted: Sun Mar 04, 2018 11:09 pm
by Wenjie Dong 2E
It's because CO2 is the other reactant in this reaction. Since it does not occur in the reaction of NO2, there must be a subsequent reaction that involves CO2.

Re: Friday Lecture

Posted: Sun Mar 04, 2018 11:39 pm
by Caroline LaPlaca
It’s because of CO2

Re: Friday Lecture

Posted: Sun Mar 04, 2018 11:42 pm
by Miguel Velasco 2J
CO2 is zero order and is needed

Re: Friday Lecture

Posted: Mon Mar 05, 2018 2:15 pm
by aaron tang 2K
Correct, CO2 is a zero order so it doesn't affect the determination rate or the slow step.