The following mechanism has been proposed for the reaction of NO with Br₂ to form NOBr:
NO(g) + Br₂(g) $⇌$ NOBr₂(g)
NOBr₂(g) + NO(g) $⟶$ 2NOBr(g)
If the second step is the rate-determining step, the order of the reaction with respect to NO(g) is:

Question

The following mechanism has been proposed for the reaction of NO with Br₂ to form NOBr:

NO(g) + Br₂(g) $⇌$ NOBr₂(g)

NOBr₂(g) + NO(g) $⟶$ 2NOBr(g)

If the second step is the rate-determining step, the order of the reaction with respect to NO(g) is:

TestHub · Accepted Answer

NOB r 2 ​ ( g ) + NO ( g ) k 2 ​ ​ 2 NOB r ( g ) × R a t e = k 2 ​ [ NOB r 2 ​ ] [ NO ] R a t e = k 2 ​ × k − 1 ​ k 1 ​ ​ [ NO ] 2 [ B r 2 ​ ] = k [ NO ] 2 [ B r 2 ​ ]

Chemistry - Chemical Kinetics Question with Solution | TestHub

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