What is the overall order of the reaction below 2 NO(g) + O2(g) → 2 NO2(g)...

What is the overall order of the reaction below

2 NO(g) + O₂(g) → 2 NO₂(g)

if it proceeds via the following rate expression?

a) zero-order b) first-order c) second-order d) third-order e) fourth-order

Expert Solution

2 NO(g) + O₂(g) → 2 NO₂(g)

The rate law for the above reaction is r = k[NO(g)]² [O₂(g)]

The order of the reaction = sum of the powers of the concentration terms in the rate expression

= order with respect to NO(g) + order with respect to O₂(g)

= 2+1

= 3

So the overall order of the reaction is 3

Since the order of the reaction is 3 so it is third-order reaction

Therefore option (d) is correct.

queen_honey_blossom answered 1 year ago

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