SCH4U 2015
Date:
Unit 2 Energy Changes and Rates of Reaction Review
Study smarter! Not necessarily longer! Remember reviewing/studying for the test does NOT mean doing the
homework/questions for the first time. Pick and choose questions that YOU need more practice/review with. All
the questions in the review sections are labeled with the corresponding section. Use the multiple choice to test
your understanding, build up your confidence, and spend more time practice questions you are having difficult
with.
Homework:
Multiple Choice Practice Pg. 404 #1-16, Pg. 406 #1-12
Full Solutions Pg. 408 # 46, 50, 53, 55, 79, 80, 87, 88
You must know how to use and rearrange the following equations:
 Calorimetry: q = mcDT and qreaction = -qcalorimeter
 Heat of formation: DH = å nDH0f Products -å nDH0fReactants
 Molar enthalpy change DH = nDHr
 Bond dissociation: DH = å nDReactants -å nDProducts
m
n
 Rate law equation: rate = k éëAùû éëBùû
m
n
 Rate law expression: rateµéëAùû éëBùû
Chapter 5 Thermochemistry Review
Homework:
Multiple Choice Practice Pg. 337 #1-8, Pg. 338 #1-8
Full Solutions Pg. 338 # 34, 36, 37, 41, 46, 52, 53, 56, 59
2.1 Energy Changes
Physical / Chemical / Nuclear change
Thermochemistry
Energy
Potential / Kinetic energy
Thermal energy
Heat
Temperature
Chemical system / Surroundings
Open / closed / isolated systems
Exothermic / Endothermic
Fusion / Fission
Law of conservation of energy
2.4 Hess’ Law
Path / State function
Heat of summation
2.2 Calorimetry and Enthalpy
Specific heat capacity
Calorimetry
Calorimeter
Enthalpy
Enthalpy change (H)
Molar enthalpy change (Hr)
Potential energy diagrams
2.5 Standard Enthalpy of Formation
Standard enthalpy of formation (H0f)
Standard state
Combustion
2.3 Bond Energies
Bond dissociation energy (D)
Average bond energies
Multiple bonds
Bond type
Bond number
2.6 Present and Future Energy
Sources
Coal slurry
Syngas
efficiency
Chapter 6 Chemical Kinetics Review
Homework:
Multiple Choice/True and False Practice Pg. 395 #1-10, Pg. 396 #1-9
Full Solutions Pg. 50, 52, 62, 63, 68, 71
2.7 Reaction Rates
Chemical kinetics
Reaction rate
Average reaction rate
Instantaneous reaction rate
Nature of the reactants
Catalyst
Heterogeneous catalyst
Homogeneous catalyst
Surface area
2.8 Collision Theory
Collision theory
Kinetic molecular theory
Orientation (geometry)
Activation energy (EA)
Activated complex
Maxwell-Boltzmann
distribution
Ineffective / effective collision
Average kinetic energy
2.9 Rate Law
Rate law expression
Rate law equation
Order of reaction
Total order of reaction
Initial rate
Rate constant (k)
2.10 Reaction Mechanisms
Elementary step
Reaction mechanisms
Overall EA
Rate-determining step (RDS)
Reaction intermediate
Molecularity
Uni / Bi / Ter - molecularity
Concentration