Question:

Which of the following chemical pathways for the breaking down of ozone has the highest activation energy?

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A. 2O3→ 3O2

B. Cl + O3→ ClO + O2

ClO + O3→ Cl + 2O2

C. the activation energy for both is the same

D. it will depend on the air pressure

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2 ANSWERS


  1. A. 2O3→ 3O2

    In the second reaction mechanism Cl acts as a catalyst. Catalysts lower the activation energy.


  2. the answer is a

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