R2.2.9 Reaction mechanisms (HL)

This video covers how to deduce to the overall equation from the reaction mechanism and also how to deduce the rate expression from the elementary steps.

[reesesjoyjia]

for the question before the last one, why can step 1's reverse rate have NO3 it in but step 2's rate cannot?

[anonmela]

Im confused, what is it that we would actually have to do in a question since the ib state that we dont have to propose a reaction mechanism in the current syllabus, could you please help? :)

[sachinprabhuram]

Does k1 and k-1 cancel out because they are the same in equilibrium?

[LloydJackson-bxzc]

Why is the rate expression [NO2]2 if you ignore the intermediates? wouldn't it be first order?

[uncleparry]

can I just look at the slow step and its coefficients to find the rate?

[anonmela]

So does that mean we can tell the order with respect to something based on if the slow step is uni or bimolecular?

[Godfavorsmi]

You had me until the equilibrium and elimination of intermediate