1Week 12 CHEM 1310 - Sections L and M 1CHEM 1310: UpdateExam 1 Exam 2 Exam 3Final Exam: Mon, Dec 10 (2:50 - 5:40 pm)Chapters 1 - 5Chapters 12, 13, 16, 17Chapters 6-9Chapters 10, 15 Chemical Equilibrium Acids and Bases Applications of Aqueous Equilibria Energy, Enthalpy, and ThermochemistryExam 3Fri., Nov 16Week 12 CHEM 1310 - Sections L and M 2Energy, Enthalpy, & Thermochemistry 9.1 The Nature of Energy 9.2 Enthalpy 9.3 Thermodynamics of Ideal Gases 9.4 Calorimetry 9.5 Hess’s Law 9.6 Standard Enthalpies of Formation 9.7 Present Sources of Energy 9.8 New Energy SourcesWeek 12 CHEM 1310 - Sections L and M 3Fossil Fuels Fossil fuels account for 85% of the world’senergy consumption Coal Natural Gas Oil2Week 12 CHEM 1310 - Sections L and M 4Fossil Fuels Coal is obtained from 3 regions in the USWeek 12 CHEM 1310 - Sections L and M 5“Clean” Fuel: HydrogenCH4 + H2O CO + 3 H2SteamReformingNiHeatApplications include batteriesfor space shuttles and for cars(~200 in CA).Week 12 CHEM 1310 - Sections L and M 6Renewable Energy Sources Solar Wind Geothermal Biomass HydropowerSolar Electric Generating Units10 in CA4 in AZ+ smaller units throughout US3Week 12 CHEM 1310 - Sections L and M 7Renewable Energy Sources Solar Wind Geothermal Biomass HydropowerOff-shore Danish Wind Farmwww.EVWorld.com Generator in wind machine converts mechanical energyinto electricityWeek 12 CHEM 1310 - Sections L and M 8Renewable Energy Sources Solar Wind Geothermal Biomass HydropowerGeothermal (heat from earth’s crust) energy can be obtained from volcanoes, geysers, and hot springs.Week 12 CHEM 1310 - Sections L and M 9Renewable Energy Sources Solar Wind Geothermal Biomass HydropowerBurn waste to release energyFerment corn to produce fuelHarness natural gas emissions4Week 12 CHEM 1310 - Sections L and M 10Renewable Energy Sources Solar Wind Geothermal Biomass HydropowerMovement of water turns blades in turbines which spingenerators, producing electrical energyWeek 12 CHEM 1310 - Sections L and M 11Exam #3 Review Ch. 6 - Chemical Equilibrium Ch. 7 - Acids & Bases Ch. 8 - Applications of Equilibria Ch. 9 - ThermochemistryShow Model ScanTron Sheet Week 12 CHEM 1310 - Sections L and M 12PRS Question For water near its triple point, Hfus = 6.0 kJ/moland ∆Hvap = 45.0 kJ/mol. Thus, ∆H for thesublimation process, H2O(s) → H2O(g), is:1. 6.0 kJ/mol2. 39.0 kJ/mol3. 45.0 kJ/mol4. 51.0 kJ/mol5Week 12 CHEM 1310 - Sections L and M 13PRS Question For water near its triple point, Hfus = 6.0 kJ/moland ∆Hvap = 45.0 kJ/mol. Thus, ∆H for thesublimation process, H2O(s) → H2O(g), is:1. 6.0 kJ/mol2. 39.0 kJ/mol3. 45.0 kJ/mol4. 51.0 kJ/molH2O(s) → H2O(l) ∆Hfus = 6.0 kJ mol–1H2O(l) → H2O(g) ∆Hvap = 45.0 kJ mol–1H2O(s) → H2O(g) Add ∆H valuesWeek 12 CHEM 1310 - Sections L and M 14PRS Question How much heat energy is required to raise thetemperature of 0.298 mole of water from 35.93°Cto 79.84°C?1. 13.09 J2. 54.7 J3. 985 J4. 3310 JCs for H2O(l) = 4.18 Jg-1°C-1Week 12 CHEM 1310 - Sections L and M 15PRS Question How much heat energy is required to raise thetemperature of 0.298 mole of water from 35.93°Cto 79.84°C?1. 13.09 J2. 54.7 J3. 985 J4. 3310 J6Week 12 CHEM 1310 - Sections L and M 16PRS Question For a balloon expanding againstatmospheric pressure, the work w done onthe balloon is:1. Positive2. Negative3. Of indeterminate sign4. Zero5. This cannot be answered without additional informationWeek 12 CHEM 1310 - Sections L and M 17PRS Question For a balloon expanding againstatmospheric pressure, the work w done onthe balloon is:1. Positive2. Negative3. Of indeterminate sign4. Zero5. This cannot be answered without additional
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