The decomposition of ozone in the stratosphere can occur by the following two-step mechanism: Br + O₃ → BrO + O₂
BrO + O → Br + O₂
Which species is a catalyst in this mechanism?

Question

The decomposition of ozone in the stratosphere can occur by the following two-step mechanism: Br + O₃ → BrO + O₂ BrO + O → Br + O₂ Which species is a catalyst in this mechanism?

Quizplus · Accepted Answer

Br acts as a catalyst because it is consumed in the first step and regenerated in the second step, without being consumed in the overall reaction.

The Decomposition of Ozone in the Stratosphere Can Occur by the Following