AP Chemistry · Unit 5: Kinetics
5.8 Reaction Mechanism and Rate Law
In short
You must understand that for reaction mechanisms where each elementary step is irreversible, or where the first step is rate limiting, the overall rate law of the reaction is determined by the molecularity of the slowest elementary step (the rate-limiting step).
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What else do you need to know about Reaction Mechanism and Rate Law?
The collection of data pertaining to the detection of a reaction intermediate is explicitly excluded and will not be assessed on the AP Exam.
How is Reaction Mechanism and Rate Law tested on the exam?
You are expected to identify appropriate theories, definitions, or mathematical relationships to solve problems (Skill 5.B). This typically involves determining the rate law directly from the stoichiometry of the slow, rate-limiting first step of a provided mechanism. Questions will not require you to collect data pertaining to the detection of reaction intermediates.
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Reaction Mechanism and Rate Law: common questions
What do you need to know about Reaction Mechanism and Rate Law for AP Chemistry?
You must understand that for reaction mechanisms where each elementary step is irreversible, or where the first step is rate limiting, the overall rate law of the reaction is determined by the molecularity of the slowest elementary step (the rate-limiting step).
How is Reaction Mechanism and Rate Law tested on the AP Chemistry exam?
You are expected to identify appropriate theories, definitions, or mathematical relationships to solve problems (Skill 5.B). This typically involves determining the rate law directly from the stoichiometry of the slow, rate-limiting first step of a provided mechanism.
Where does Reaction Mechanism and Rate Law fit in AP Chemistry?
Reaction Mechanism and Rate Law is topic 5.8 in Unit 5: Kinetics of AP Chemistry.
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