7 15. E.064 My Notes O Ask Your T In the gas phase, the production of bromophosg

Question

7 15. E.064 My Notes O Ask Your T In the gas phase, the production of bromophosgene from bromine and carbon monoxide is a mechanism Fast equilibrium Br +COCOBr Fast equilibrium Slow Fast COBr + Br2 COBr2 + Br Overall reaction: CO + Br2 COBr2 (a) Write the rate law for this reaction. (Enter your answer using the generic rate constant k. Rate expressions take the general form: rate = k . [A]a . [8]b.) chemPad Help Greek (b) Which species are intermediates? (Separate substances in a list with a comma.) chemPad Help Need Help? Watch

Explanation / Answer

In the given reaction steps, slow step is the rate determining step.

COBr + Br2 ----> COBr2 + Br

Rate law for this step is shown below

Rate = k. [COBr].[Br2]

Here order with respect to CObr is =a =1

Order with respect to Br2 = b = 1

b)

Intermediates are the which forms from the reactant and disappear at the end

In the above steps Br and COBr are intermediates.

Br formed in 1st step and consumed in 2nd step

COBr formed in 2nd step and consumed in 3rd step.

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