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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 2Demonstration: Liquid N2 Ice Cream Discuss System/Surroundings designations, Heat, Temperature, Thermal Equilibrium, 0th Law; Mechanism of Heat TransferLab T1: Zeroing in on Heat - collect data, graph, concludeThink Sheet: Heat and Temperature (p. 1) Discuss Chapter  10.1 Reading (p. 2) Homework:    WebAssign: Chapter 10.2, 5 Rdg Guide Help: Lesson 1 of Thermal Physics (The Physics Classroom)

 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 MetalDo Lab T2: Specific Heat Capacity of a MetalDiscuss Q w/Q=m•c•∆T; Calorimetry; do Q#1, 3, 4 on pp. 7-8 Homework:    WebAssign: Chapter 10.3-4, 6 Rdg GuideWebAssign: Calorimetry 1 Help: Lesson 2 of Thermal Physics (The Physics Classroom)

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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:    WebAssign: Chapter 10.3-4, 6 Reading Guide WebAssign: Calorimetry 2 Help: Lesson 2 of Thermal Physics (The Physics Classroom)Calorimetry (YouTube - CrashCourse)

 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 processesBond Energy and Reactions (pp. 11-14) Lab T5: Heat of CombustionThermal Stoichiometry (pp. 15-16, selected Qs) Homework:    WebAssign: EnthalpyWebAssign: Chapter 10.7 Reading Guide Help: Endothermic vs. Exothermic Reactions (YouTube - Bozeman Science)Enthalpy (YouTube - CrashCourse) Thermochemical Equations (YouTube - Tyler DeWitt)Thermochemical Equations (U of W; tutorial, practice, answers)

 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 ReactionsDiscuss Chapter 10.7 and post-process pp. 11-14 Hess's Law (pp. 21-22, Q#1-3) Homework:    WebAssign: Thermal Stoichiometry Help: Enthalpy (YouTube - CrashCourse) Enthalpy of Reaction and Hess's Law (YouTube - Bozeman Science)Thermochemical Equations (YouTube - Tyler DeWitt)Thermochemical Equations (U of W; tutorial, practice, answers)

 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 dataCollect Lab Notebooks Pop Quiz Homework:    WebAssign: Hess's Law WebAssign: Chapter 10.8-10 Reading Guide Help: Enthalpy of Reaction and Hess's Law (YouTube - Bozeman Science) Enthalpy (YouTube - CrashCourse)Hess's Law (Tutorial from ChemGuide)Hess's Law (YouTube - Professor Dave Explains)

 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 KeyDiscuss 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 equationSpontaneity 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 FormationIntroduce Soap Project Homework:    WebAssign: Heat of FormationWebAssign: Entropy Help: Entropy (collection of articles ... interesting ... technical) Entropy (lengthy, technical, accurate) What is Entropy? (YouTube - The Science Asylum)Laws of Thermo, Entropy, and Gibb's Free Energy (YouTube - Professor Dave Explains)Entropy, Enthalpy, Gibbs Free Energy (YouTube - Crash Course)Gibbs Free Energy (web tutorial; worth reading)

 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 EnergyThink Sheet: Spontaneity and Enthalpy Change (pp. 25-26)Review Free Energy and the Free Energy equationSpontaneity and Free Energy (p. 28, Q#7-10)Introduce Soap Project Lab TC8 - Hess's Law Homework:    WebAssign: Gibbs Free EnergyWebAssign: Unit 6 Reading Guide Help: Entropy (collection of articles ... interesting ... technical) Entropy (lengthy, technical, accurate) What is Entropy? (YouTube - The Science Asylum)Laws of Thermo, Entropy, and Gibb's Free Energy (YouTube - Professor Dave Explains)Entropy, Enthalpy, Gibbs Free Energy (YouTube - Crash Course)Gibbs Free Energy (web tutorial; worth reading)

 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: Laws of Thermo, Entropy, and Gibb's Free Energy (YouTube - Professor Dave Explains) Entropy, Enthalpy, Gibbs Free Energy (YouTube - Crash Course) Gibbs Free Energy (web tutorial; worth reading)

 Day Friday, February 16 10 Focus Question(s): What did we learn during Unit 4? Activities: Continue Unit 5/Atomic StructureUnit 4 Test Homework:    WebAssign: Unit 5 Reading Project Planning Help: See Unit 5 Schedule for Help on Unit 5

 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 PlanningUnit 5 Homework Help: See Unit 5 Schedule for Help on Unit 5

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