Thermochemistry and Reaction Rates |
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Chapter
Objectives At the end of this unit students will be able to 1. explain how energy, heat, and work are related. 2. classify processes as either exothermic or endothermic. 3. describe how calorimeters are used to measure heat flow. 4. construct thermochemical equations. 5. solve for enthalpy changes in chemical reactions by using heats of reaction. 6. classify enthalpy change that occurs when a substance melts, freezes, boils, condenses, or dissolves. 7. state Hess's law of heat summation and describe how it is used in chemistry. 8. identify 4 factors that influence the rate of a chemical reaction. 9. identify 3 stresses that can change the equilibrium position of a chemica system. 10. predict whether a precipitation will occur when 2 salt solutions are mixed. 11. identify 2 characteritics of spontaneous reactions and 2 factors that determine the spontaneity of a reaction. 12. describe the role of entropy in chemical reactions. |
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