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Unit 5: Thermodynamic Model of Reactions



Day
Tuesday, January 23
1
Focus Question(s):
  • What did we learn this past unit?
  • How do two adjacent or nearby objects thermally interact with one another and how are the interactions explained in terms of heat and temperature.

Activities:
  • Discuss Grades, Viewing Tests, Semester 2
  • Demonstration: Liquid N2 Ice Cream
  • Discuss System/Surroundings designations, Heat, Temperature, Thermal Equilibrium, 0th Law; Mechanism of Heat Transfer
  • Lab T1: Zeroing in on Heat - collect data, graph, conclude
  • Think Sheet: Heat and Temperature (p. 1)
  • Discuss Chapter  10.1 Reading (p. 2)



Homework:   



Help:






Day
Thursday, January 25
2
Focus Question(s):
  • How can the quantity of heat transferred between systems and surroundings be measured?
  • How and why do the energy changes that occur during a chemical change affect the temperature of the surroundings?

Activities:
  • Review Heat and Temperature; do Packet pp. 1-2
  • Discuss Chapter 10.2, 5 Rdg Guide (pp. 3-4)
  • Pre-Lab Lab T2 Specific Heat Capactity of a Metal
  • Do Lab T2: Specific Heat Capacity of a Metal
  • Discuss Q w/Q=m•c•∆T; Calorimetry; do Q#1, 3, 4 on pp. 7-8


Homework:   



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Day
Monday, January 29
3
Focus Question(s):
  • How can the quantity of heat transferred between systems and surroundings be measured?
  • How and why do the energy changes that occur during a chemical change affect the temperature of the surroundings?

Activities:
  • Review Calorimetry and Energy Change; pp. 7-8, Q#2, #3, #4
  • Discuss Chapter 10.3-4, 6 Reading Guide (pp. 5-6)
  • Think Sheet: Energy Change and Reactions (p. 9)
    Think Sheet: Enthalpy Chang (p. 10)
  • Lab T4: Heat of Solution


Homework:   



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Day
Wednesday, January 31
4
Focus Question(s):
  • How can the quantity of heat transferred between systems and surroundings be measured?
  • How can enthalpy be incorporated into a stoichiometric analysis?

Activities:
  • Review endothermic vs. exothermic processes
  • Bond Energy and Reactions (pp. 11-14)
  • Lab T5: Heat of Combustion
  • Thermal Stoichiometry (pp. 15-16, selected Qs)


Homework:   


Help:







Day
Friday, February 2
5
Focus Question(s):
  • Why do chemical reactions have enthalpy changes and how are the amounts related to bond-breaking and forming?
  • How can enthalpy be incorporated into a stoichiometric analysis?
  • How is the enthalpy change of a reaction determined?

Activities:
  • Thermal Stoichiometry (pp. 15-16, selected Qs)
  • Demo: Endothermic Reactions
  • Discuss Chapter 10.7 and post-process pp. 11-14
  • Hess's Law (pp. 21-22, Q#1-3)


Homework:   



Help:






Day
Tuesday, February 6
6
Focus Question(s):
  • How are enthalpy changes determined?

Activities:
  • Hess's Law (pp. 21-22, Qs#3, #4, #6)
  • Calculating ∆H from Heat of Formation
  • Lab T6 - Heat of Formation - collect data
  • Collect Lab Notebooks
  • Pop Quiz


Homework:   



Help:







Day
Thursday, February 8
7
Focus Question(s):
  • What variables would contribute ro a positive or negative entropy change?
  • What are the driving forces for a sponaneous reaction?
  • How can one use the free energy concept to predict whether or not a reaction is spontaneous?

Activities:
  • Lab Notebooks/Discuss Annotations
  • Return Quiz/Discuss Bond Energy/View Answer Key
  • Discuss Chapter 10.8-10 Reading Guide (pp. 19-20)
  • Think Sheet: Entropy and Change (pp. 23-24; skip Q#6)
  • Discuss Free Energy and the Free Energy equation
  • Spontaneity and Free Energy (p. 27, Q#1-6)
  • Hess's Law and Heats of Formation (Q#3-Q#5 ... 5 minutes)
  • Complete Lab T6 - Heat of Formation
  • Introduce Soap Project


Homework:   



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Day
Monday, February 12
8
Focus Question(s):
  • How are entropy change and enthalpy change related to spontaneity of reactions?
  • How does one use Gibbs Free Energy to predict whether a reaction is spontaneous or not at a given temperature?

Activities:
  • Review Entropy; 2nd Law of T; Spontaneity; Gibbs Fee Energy
  • Think Sheet: Spontaneity and Enthalpy Change (pp. 25-26)
  • Review Free Energy and the Free Energy equation
  • Spontaneity and Free Energy (p. 28, Q#7-10)
  • Introduce Soap Project
  • Lab TC8 - Hess's Law


Homework:   


Help:






Day
Wednesday, February 14
9
Focus Question(s):
  • What did we learn this past unit?
  • Unit 6 Focus: to be announced.

Activities:
  • Unit 5 Test
  • Continue Unit 6 on States of matter


Homework:   
  • Test Preparation



Help:






Day
Friday, February 16
10
Focus Question(s):
  • What did we learn during Unit 4?

Activities:
  • Continue Unit 5/Atomic Structure
  • Unit 4 Test


Homework:   


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Day
Tuesday, December 20
11
Focus Question(s):
  • How is soap made and colored and scented?

Activities:
  • Comments
  • Soap Lab Day #3 (add scents and coloring)


Homework:   
  • Project Planning
  • Unit 5 Homework



Help:








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