AP Chemistry Unit 5 - Chemical Kinetics
Authored by Tricia Kreitzer
Chemistry
11th - 12th Grade
NGSS covered
Used 904+ times
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About
This quiz comprehensively covers chemical kinetics, the study of reaction rates and mechanisms, appropriate for AP Chemistry students in grades 11-12. The questions assess fundamental kinetics concepts including reaction orders, rate laws, rate constants and their units, activation energy, half-life calculations, reaction mechanisms, and the identification of catalysts versus intermediates. Students need a solid understanding of how to interpret rate law expressions, calculate overall reaction orders by summing individual orders, relate rate constants to reaction speed and temperature dependence, and analyze multi-step mechanisms to distinguish between intermediates (formed then consumed) and catalysts (consumed then reformed). The mathematical components require skills in exponential decay, logarithmic relationships for first-order kinetics, and stoichiometric relationships between reactant consumption and product formation rates. Created by Tricia Kreitzer, a Chemistry teacher in the US who teaches grades 11-12. This assessment serves as an excellent tool for evaluating student mastery of kinetics principles before the AP Chemistry exam, functioning effectively as a unit review, formative assessment, or homework assignment to identify areas needing reinforcement. The quiz format allows students to practice the types of conceptual and computational problems they will encounter on the AP exam, while giving teachers immediate feedback on class understanding of complex topics like mechanism analysis and quantitative rate calculations. The questions align with AP Chemistry Learning Objectives related to chemical kinetics, including LO 4.1 (explaining how the rate of a chemical reaction is influenced by concentration and temperature), LO 4.2 (analyzing concentration versus time data to determine rate laws), and LO 4.3 (connecting the rate law to proposed mechanisms for multi-step reactions).
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tags
NGSS.HS-PS1-5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which one of the following is a first order, overall reaction
Tags
NGSS.HS-PS1-5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tags
NGSS.HS-PS1-4
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Consider the following rate law: Rate = k[A]n[B]m
How are the exponents n and m determined?
Tags
NGSS.HS-PS1-5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tags
NGSS.HS-PS1-4
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What would be my the overall order of this rate law?
Rate=[A]2[B]1
Tags
NGSS.HS-PS1-5
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tags
NGSS.HS-PS1-5
NGSS.HS-PS1-4
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