Skylar sprinted around the track at her school. At the end of her run, she was taking more air into her lungs and her heart rate
2 answers:
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Answer:
b. Second order in NO and first order in O₂.
Explanation:
A. The mechanism
B. The rate expressions
The last expression is the rate law for the slow step. However, it contains the intermediate N₂O₂, so it can't be the final answer.
C. Assume the first step is an equilibrium
If the first step is an equilibrium, the rates of the forward and reverse reactions are equal. The equilibrium is only slightly perturbed by the slow leaking away of N₂O₂ to form product.
D. Substitute this concentration into the rate law
The reaction is second order in NO and first order in O₂.