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Chemistry 105 Spring, 2013
Unit 2 Summary

4/25 Outcomes:
1. To review air quality issues related to fossil fuel consumption and the limitations of this resource.
2. To define energy, work, heat, and temperature in scientific (thermodynamic) terms, and how the terms calorie, nutritional Calorie, joule, and kilojoule are related.
3. To describe the First Law of Thermodynamics as the conservation of energy, and the interplay of kinetic, potential, heat and work energy. To describe and apply the Second Law of Thermodynamics from several points of view: randomness, chaos, probability, distribution of matter and energy, energy efficiency.
4. To know that we measure energy only through change, such as with a calorimeter.
5. To use potential energy diagrams to represent changes that take place in reactions
6. To use the terms endothermic and exothermic to describe the entry or exit of heat from chemical systems (and that the opposite change must take place in the surroundings).
7. To know that energy changes in reactions come from changes in chemical bonds, and how they can be estimated from differences in bond energies of bonds broken vs. formed.
8. To express and interpret these changes in potential energy diagrams and apply these skills to the combustion of fuels.
9. To view and describe recent trends in energy source utilization.
10. To give specific details on the composition of coal and its impacts on environmental quality.
Assignments:
Read §4.1 – 4.5. Recommended exercises: From the above sections, all in-chapter “Your Turn” exercises, and chapter-end problems selected from #1 – 18, 24 - 29

4/30 Outcomes:
1. To describe petroleum as a mixture of hydrocarbons, and how they are separated industrially.
2. To distinguish alkanes from other types of hydrocarbons.
3. To draw examples of straight-chain and branched alkanes and give...

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