Course: PCLS
Unit: Kinetics & Thermochemistry
Dates: 11/24-12/5
1
The unit exam is scheduled for 12/4 & 12/5.
Learning Objectives:
6.1: Interpret experimental data on reaction rates
6.2: Identify the requirements for a successful chemical reaction using the model of
collision theory.
6.3: Describe the factors that can change the rate of a reaction and explain how they
increase or decrease the rate.
7.1: Describe temperature and heat flow in terms of the motions of molecules
7.2: Define and interpret exothermic and endothermic chemical processes using models
showing relative energies of reactants and products
7.3: Explain how the energy of a reaction depends on the processes of bond breaking and
bond making
7.4: Use calorimetry to determine enthalpy of reaction (Q=cm ΔT)
Student Outcomes:
 Collect data on reaction rates
 Interpret reaction rate data graphically
 Explain the process of heat flow and its relationship to temperature
 Interpret energy level diagrams to determine if reactions are exothermic or
endothermic
 Draw molecular diagrams to explain bond-making and bond-breaking processes in a
chemical reaction
 Use mathematical reasoning to determine enthalpy of a reaction
Unit Topics:
 Collision theory
 Reaction rates
 Energy (Exothermic & endothermic reactions, and bond energy)
 Chemical Processes
 Calorimetry
Topic Objectives:
1. Describe the events that must take place if a successful reaction is to occur.
2. Define “reaction rate” and provide an example.
3. Identify and explain the factors that affect reaction rates and how they affect the
rates.
4. Explain the difference between temperature and heat.
2
5. Describe the elements of the thermochemical universe.
6. Compare and contrast endothermic and exothermic processes.
7. Construct and interpret energy diagrams (reaction rate graphs) including relative
energies of reactants and products.
8. Draw and explain what happens to the energy when chemical bonds are broken and
when they are formed.
9. Identify the amount of energy contained in simple molecular bonds.
10. Explain the concept of specific heat.
11. Solve calorimetry problems using Q = cm ΔT
Unit Labs & Activities:
Embedded in the work packets are practice problems, short investigative labs & activities.
***DO NOT DO THIOSULFATE ROSES***
Textbook Readings:
Hewitt: Ch. 13, p. 337-350
Glencoe: Ch. 15; Sections 1-3
Problems (Glencoe):
p. 521-522 #4-11
p. 525 #12-15
p. 528 #16-22
p. 533 #26-31
Section Review Summaries: p. 551
Additional Problems:
p. 552 #53-57, 62-67, and 69-73
Online Resources
Collision Theory http://themadscientist.weebly.com/kinetics.html
Reaction Rates http://themadscientist.weebly.com/reaction-rates.html
Thermochemistry http://themadscientist.weebly.com/energy.html
Heat vs. Temperature
1. Video: Inflation of airbags in cars
2. Zonal Education: Heat & Temperature
2a. BrainPOP! Heat (Login: SAS1912; password: Shanghai)
3
3. Physics Classroom: Thermal Physics (Complete lesson 1; a, b, c & d)
Endothermic vs. Exothermic
4. Chemguide: Chemical Energetics
5. WISC Online: Energy in chemical reactions
6. Video: Endothermic & exothermic reactions (1) http://youtu.be/L-G7pLufXAo
and (2) http://youtu.be/idxf-4BKRAI
Calorimetry
7. Physics Classroom: Calorimetry
8. Video: http://youtu.be/SAR-5wdQKSY
Enthalpy
9. WISC Online: Enthalpy
Bond Energy
10. Bond Energy Powerpoint & Corresponding Worksheet
11. Videos: http://youtu.be/o8HF-kdQuys
12. Bond Enthalpy
http://www.avogadro.co.uk/h_and_s/bondenthalpy/bondenthalpy.htm
13. Bond Energies
http://chemwiki.ucdavis.edu/Theoretical_Chemistry/Chemical_Bonding/General_Principl
es/Bond_Energies
14. Energy changes in chemical reactions
http://www.bbc.co.uk/schools/gcsebitesize/science/add_edexcel/chemical_reactions/en
ergychangesrev2.shtml
4
Pacing Calendar (November 24-December 5)
Monday
24(1B)
Exam 3
Objectives
6.2 & 6.3
Tuesday
25(2A)
Exam 3
Objectives
6.2 & 6.3
Wednesday
26(2B)
Quiz: 6.2 & 6.3
Objectives
7.1 & 7.2
Thursday
27(3A)
Quiz: 6.2 & 6.3
Objectives
7.1 & 7.2
Friday
NO SCHOOL
1(3B)
Quiz: 7.1 & 7.2
Objectives
7.3 & 7.4
2(4A)
Quiz: 7.1 & 7.2
Objectives
7.3 & 7.4
IDP FINAL DUE
3(4B)
All quizzes
should be taken
by now.
IDP FINAL DUE
4(1A)
Exam
5(1B)
Exam
8(2A)
Project Poster
9(2B)
Project Poster
10(8P)
Gallery Walk
*Ideally, you should master two objectives by the end of each class.
You are allowed to move at your own pace. You do not have to take the quizzes on the day
listed, but you cannot take Quiz 2 without completing Quiz 1. All quizzes should be
completed by December 3.
You may come to me for review, discussion, clarification, questions, or whatever you need
to understand the material. You have to come prepared to ask questions and
demonstrate that you have reviewed the readings, tutorials, videos, and attempted
to work the problems in the packets.