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AP Chemistry/Unit 5: Kinetics
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Half-Life of First-Order Reactions

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All of the following statements about the half-life of a first-order reaction are true EXCEPT:

A

A first-order reaction exhibits successive half-lives that are constant in duration.

B

After one half-life, the concentration of a reactant decreases to 50% of its original value.

C

The half-life of a first-order reaction is independent of the initial concentration.

D

The half-life of a first order reaction increases as the initial concentration increases.

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