APFIVE Rate Law From A Reaction Mechanism
The decomposition of N₂O₅, represented by the overall equation 2N₂O₅ → 4NO₂ + O₂, is proposed to occur via the following mechanism:
Step 1: N₂O₅ ⇌ NO₂ + NO₃ (fast equilibrium)
Step 2: NO₂ + NO₃ → NO₂ + O₂ + NO (slow)
Which of the following expressions represents the rate law consistent with this mechanism?
A
Rate = k[N₂O₅]²
B
Rate = k[NO₂][NO₃]
C
Rate = k[N₂O₅]/[NO₂][NO₃]
D
Rate = k[N₂O₅]
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