CURRICULUM MAP: 10464.map
Chemistry II AP (UCONN 128)
Unit 11 Chemical Kinetics
TIME FRAME:
GRADE: 11-12
CONTACT:
MAP LEVEL:
1. How can the rate of a reaction be expressed?
2. How can the rate of a reaction be measured?
3. Is there a law which defines the rate of reactions?
4. Can the order of a reactant in a reaction be determine experimentally?
5. What does the overall order of a reaction indicate?
6. Can the order of a reaction be determined graphically?
7. Is there a formula to determine the half-life for zero, first and second order reactions?
8. How can the collision model be used to understand rates of reactions?
9. Can the transition state model be used to further understand the kinetics of reactions?
10. Can Boltzmann distributions be used to understand the effect of temperature on reaction rates as well as the effect of activation energy?
11. How can activation energy be determined graphically?
12. Is there an equation which relates temperature, rate constants and activation energy?
13. How do catalysts affect reaction rates?
14. What is the difference between heterogeneous catalysts and homogeneous catalyst?
15. Can reaction mechanisms be used to predict rate laws which have been determined experimentally?
16. Can experimental evidence be used to substantiate reaction mechanisms?
17. Can kinetics help explain the story behind ozone?
Methods of expressing reaction rate
Graphs indicating rates of reaction
Measuring rates of reaction
Writing rate laws and determining order of reactions
Determining rate laws from experimental evidence
Determining the value of rate constants
A study of zero, first, second and third order reactions and their graphs
The collision model
The transition state model
Boltzmann distribution graphs
The Arrenhius equation
Solving for rate constants at different temperatures of for activation energy
Catalysis
Reaction mechanism and rate laws
Mass action expressions
The iodination of acetone lab
Read the ozone story
Express a reaction rate in terms of change in concentration
Write a theoretical rate law
Explain experimental methods of measuring rates
Interpret graphs showing changes in concentration over time
Given a rate law, state the order of the reaction with respect to each reactant and the overall order
Determine the rate law from experimental data
Calculate the value of a rate constant in a given rate law and express the rate constant with the proper label
Use graphs to determine the order of a reaction
Determine the half-life of first and second order reactions
Use the collision model to explain effects of temperature or concentration on reaction rate
Use the transition state model to explain the effects of geometry and activation energy on reaction rates
Draw Boltzmann distribution plots at various temperatures and use these graphs to explain the effect of temperature and activation energy on reaction rates
Use a graph to calculate the value of the activation energy for a given reaction
Use the 2 point form of the Arrhenius equation to calculate rate constants, temperatures or activation energies
Explain the difference between heterogeneous and homogeneous catalysis
Prepare a graph showing the effect of a catalyst on a reaction rate
Classify elementary processes at unimolecular, bimolecular or termolecular
Determine if a mechanism is consistent with the overall reaction
Use a mechanism to determine a rate law
Resolve which of the given mechanisms is justified by experimental data
Use a mass action expression to solve for a rate law when the first step of the mechanism is fast
Discuss various factors that might affect the rate of a reaction and view pictures showing color changes during reactions
Observe graphs of concentration vs. time and use them to gain an understanding of reaction rates
Endeavor to determine the rate of a reaction by analyzing laboratory data indicating the rate at various concentrations of reactants
Use the rate law and the orders determined from experimental data to solve for the value of the rate constant and express the constant with the correct label
Use programs and lists in the TI graphing calculators to determine the order of a reaction
Once the order of a reaction has been established using the calculator, practice determining the
half-life and rate constants
Use the collision model and kinetic molecular theory to explain the effect of concentration and temperature on reaction rates
Elucidate the limiting effects of geometry on the effectiveness of collisions
Use the transition state model to draw graphs showing activation energy and activated complexes
Draw Boltzmann distribution graphs illustrating samples at different temperatures and practice marking activation energies and the number of molecules able to produce products
Use the 2 point form of the Arrhenius equation to calculate rate constants, temperatures or activation energies
Determine activation energy from the slope of a graph
Draw lines on potential energy graphs to show the effect of a catalyst on a reaction
Explain whether a catalytic converter is a homogeneous or heterogeneous catalyst
Coop groups—peer edit advanced study assignment for Experiment 14 Iodination of acetone completed for homework
Lab activity—the iodination of acetone
Observe the funnel demonstration to visualize the effect of a slow step in a reaction mechanism
Establish whether a mechanism actually represents the overall reaction
State the molecularity of any elementary process in a mechanism
Use experimental data to justify which mechanism might be correct for a reaction
Write a rate law based on a given mechanism
Use the mass action expression to write a rate law for a mechanism with an initial fast step in order to eliminate intermediates from the rate law
Advanced study assignments for labs
Ability to analyze and interpret data
Lab reports including class averages, standard deviation, % error and a written error analysis
Problem quizzes
Test—problems, essays, short answer and a few multiple choice questions (lab calculations will be covered on the test)