Home > Chemistry > Quizzes > Basic Chemistry Practice Test: Chemical Kinetics
Basic Chemistry Practice Test: Chemical Kinetics
Fast practice, instant feedback. Timer auto-submits when time’s up.
Avg score: 81% • Most missed: “SO2Cl2 decomposes in the gas phase by the reaction SO2Cl2 (g) . SO2 (g) + Cl2 (g…”
Chemical kinetics, also known as reaction kinetics, is the study of how fast chemical reactions occur and the factors that affect these rates. It's a branch of physical chemistry that's different from chemical thermodynamics, which deals with the direction in which a reaction occurs.  Chemical kinetics studies the rate of chemical reactions, which is the rate at which reactants are transformed into products. The rate of a chemical reaction is proportional to the concentrations of the reactants, and the mathematical expression of this relationship is known as the rate law.  Some applications... Show more
Basic Chemistry Practice Test: Chemical Kinetics
Time left 00:00
25 Questions

1. The isomerization of methylisonitrile to acetonitrile CH3NC (g) . CH3CN (g) is first order in CH3NC . The rate constant for the reaction is 9.45 × 10-5 s-1 at 478 K. The half-life of the reaction when the initial [CH3NC] is 0.030 M is __________ s.
2. Heterogeneous catalysts have different phases from reactants.
3. The rate constant for a second-order reaction is 0.13M-1s-1 . If the initial concentration of reactant is 0.26 mol/L, it takes __________ s for the concentration to decrease to 0.13 mol/L.
4. Which one of the following is not a valid expression for the rate of the reactionbelow?
4NH3 + 7O2 . 4NO2 + 6H2O
5. The mechanism for formation of the product X is:
A + B . C + D (slow) B + D . X (fast) The intermediate reactant in the reaction is __________.
6. Which one of the following graphs shows the correct relationship between concentration and time for a reaction that is second order in [A]?
7. SO2Cl2 decomposes in the gas phase by the reaction SO2Cl2 (g) . SO2 (g) + Cl2 (g) The reaction is first order in SO2Cl2 and the rate constant is 3.0 × 10-6s-1 at 600 K. A vessel is charged with 2.4 atmof SO2Cl2 at 600 K. The partial pressure of SO2Cl2 at 3.0 × 105s is __________ atm.
8. What is the overall order of the reaction?
9. The reaction 2NO2 . 2NO + O2 follows second-order kinetics. At 300°C, [NO2 ] drops from 0.0100- to 0.00650-M in 100 s. The rate constant forthe reaction is __________M-1s-1 .
10. The combustion of ethylene proceeds by the reaction C2H4 (g) + 3O2 (g) . 2CO2 (g) + 2H2O (g) When the rate of disappearance of O2 is 0.23M s-1 , the rate of disappearance of C2H4 is __________ M s-1 .
11. The concentration of reactants or products at any time during the reaction can be calculated from the integrated rate law.
12. If the rate law for the reaction 2A + 3B . products is first order in A and second order in B, then the rate law is ........ .. ..........................
13. The reaction A (aq) . B (aq) is first order in [A]. A solution is prepared with [A] = 1.22 M. The following data are obtained as the reaction proceeds:
........ ...... .. .. .... .... ... .. ...... ........ ........ ........ ........ The rate constant for this reaction is __________ s-1 .
14. The overall reaction order is the sum of the orders of each reactant in the rate law.
15. Nitrogen dioxide decomposes to nitric oxide and oxygen via the reaction:
2N2 . 2NO + O2
In a particular experiment at 300°C, [NO2 ] drops from 0.0100 to 0.00650 M in 100 s The rate of appearance of O2 for this period is __________ M/s.
16. The overall order of a reaction is 2. The units of the rate constant for the reaction are __________.
17. The half life for a first order rate law depends on the starting concentration.
18. Of the following, all are valid units for a reaction rate except __________.
19. The first step of a mechanism involving the reactant I2 is shown below, where the equilibrium is established. I2 (aq) 2I (aq) (1, -1) The expression relating [I] to [I2 ] is [I] = __________.
20. A catalyst can increase the rate of a reaction __________.
21. The rate of disappearance of HBr in the gas phase reaction 2HBr (g) . H2 (g) + Br2 (g) is 0.190 M s-1 at 150°C. The rate of reaction is __________ M s-1 .
22. The concentration of A is __________ M after 40.0 s.
23. The combustion of ethylene proceeds by the reaction C2H4 (g) + 3O2 (g) . 2CO2 (g) + 2H2O (g) When the rate of disappearance of O2 is 0.28M s-1 , the rate of appearance of CO2 is __________ M s-1 .
24. A particular first-order reaction has a rate constant of 1.35 × 102s-1 at 25°C. What is the magnitude of k at 75°C if Ea = 85.6 kJ/mol?
25. The reaction below is first order in [H2O2 ] :
2H2O2 (l) . 2H2O (l) + O2 (g) A solution originally at 0.600 M H2O2 is found to be 0.075 M after 54 min. The half-life for this reaction is__________ min.

⚡ Recently practiced quizzes in this topic
Live quiz activity
Basic Chemistry Practice Test: Chemistry of the Nonmetals Chemistry Certification Basic Chemistry Basic Chemistry Practice Test: Aqueous Reactions and Solution Stoichiometry Basic Chemistry Practice Test: Organic and Biological Chemistry Basic Chemistry Practice Test: Matter and Measurement Basics Basic Chemistry Practice Test: Stoichiometry & Calculations with Equations Basic Chemistry Practice Test: Thermochemistry Basic Chemistry Practice Test: Basic Concepts of Chemical Bonding Basic Chemistry Practice Test: Modern Materials
 
❤ If you liked Fatskills, consider supporting us by checking out The Life Manuals You Never Got.

🌈  Our mission is to help improve your scores in any subject and exam withonline quizzes, practice tests, study guides, & advice for students. Since 2018.
About | Explore | User Guide | Topics | Subjects | Doubt Solver | Career Aptitude Test | Answers | Free Tools | OSHA Basics Quiz | What Should We Know?
Privacy | Terms |
Without work one finishes nothing. - Ralph Waldo Emerson
© 2026 Fatskills.com

All trademarks, logos and brand names are the property of their respective owners. All company, product and service names used in this website are for identification purposes only. Use of these names, trademarks and brands does not imply endorsement.