Reaction Mechanisms and Rate Law

AP Chemistry· difficulty 4/5

R int. P

From the profile, which step is rate-determining?

  • A

    Both equal

  • B

    Step 2 (lower second peak)

  • C

    Step 1 (higher first peak)

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  • D

    Cannot tell

Explanation

The taller barrier (higher Eₐ) is rate-determining; here that is Step 1.

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