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AP Chemistry Unit 5 Kinetics

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About this Exam

Prepare with the AP Chemistry Unit 5 Kinetics practice quiz. This question bank includes 25 questions covering reaction, rate, refer, temperature, and mechanism. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

Sample Questions

Question 1
Why does an increase in temperature increase the rate of a reaction?
shift the equilibrium to favor the products
C
There are more collisions per second that will have the proper energy to exceed the activation energy.
reverse E a < forward Ea and ΔH is endothermic
Explanation:
Correct answer: There are more collisions per second that will have the proper energy to exceed the activation energy.
Question 2
A change in temperature of 10 degrees was found to triple the rate of a particular chemical reaction. How does this change in temperature affect the reacting molecules?
The intermediate molecules contain normal bonds rather than partial bonds and can be occasionally isolated.
activation energy, orientation, and frequency
The number of molecules above the reaction energy threshold triple.
shift the equilibrium to favor the products
Explanation:
Correct answer: The number of molecules above the reaction energy threshold triple.
Question 3
In a series of chemical reactions, how do the reaction intermediates differ from the activated complexes?
(A)
There are more collisions per second that will have the proper energy to exceed the activation energy.
The intermediate molecules contain normal bonds rather than partial bonds and can be occasionally isolated.
reverse E a < forward Ea and ΔH is endothermic
Explanation:
Correct answer: The intermediate molecules contain normal bonds rather than partial bonds and can be occasionally isolated.
Question 4
The rate of a chemical reaction is related to
There are more collisions per second that will have the proper energy to exceed the activation energy.
Halving the concentration of A and quadrupling the concentration of B
activation energy, orientation, and frequency
The intermediate molecules contain normal bonds rather than partial bonds and can be occasionally isolated.
Explanation:
Correct answer: activation energy, orientation, and frequency
Question 5
Questions 5 and 6 refer to the following proposed mechanism for the reaction of chlorine gas with chloroform, CHCl 3 , to form carbon 5. What is the overall reaction equation for this mechanism?
Rate = 0.45 hr -1 [ 12 H 22 O 11 ]
Cl 2 (g) + CHCl 3 (g) → HCl(g) + CCl 4 (g)
15 M –2 min –1
4
Explanation:
Correct answer: Cl 2 (g) + CHCl 3 (g) → HCl(g) + CCl 4 (g)

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Additional Information

AP Chemistry Unit 5 Kinetics

This practice set contains 25 questions from the matching question bank and focuses on reaction, rate, refer, temperature, and mechanism. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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Frequently Asked Questions

This quiz contains a total of 25 practice questions carefully selected to test your knowledge on this subject.
Yes, you will have exactly 0 minutes to complete the exam. A countdown timer will be visible once you start.
Yes, you can retake this practice test as many times as you need. The questions and options may be randomized on subsequent attempts to ensure comprehensive learning.

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