Chapter_13IM - Chapter 13 Chemical Kinetics This chapter...

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Chapter 13 Chemical Kinetics This chapter introduces the concept of rates of chemical reactions. Upon completion of this chapter, your students should be able to: 1. Differentiate between average and instantaneous rates of chemical reactions. 2. Define rate constant. 3. Use the concepts of stoichiometry to write reaction rate expression in terms of the disappearance of reactants and the appearance of products. 4. Sketch the rate of reaction versus concentration of reactant for zero and first order reactions. 5. Use rate data to determine rate laws and rate constants. 6. Show mathematically that ln [A] = −kt + ln [A] 0 for first order reactions. 7. Determine the time required for the concentration of a reactant to change a desired amount given the initial concentration and the rate constant for a first order reaction. 8. Show that half-life is independent of initial concentration of the reactant in a first order reaction. 9. Use the concept of half-life to determine concentration of reactants over time. Show mathematically that 1/ 2 0 1 t k[A] = for second order reactions. 10. Describe the Collision Theory of Chemical Kinetics using the terms activation energy, activated complex (transition state), potential energy profiles, endothermic and exothermic reactions. 11. Use Arrhenius equation to determine the activation energy of a reaction. 12. Demonstrate that the sum of elementary steps is the overall reaction for a reaction mechanism and that intermediates appear in the reaction mechanism but no in the overall reaction. 13. Define molecularity of unimolecular, bimolecular, and termolecular reactions. 14. Relate the importance of the rate-determining step in determination of reaction mechanisms. 15. Express how isotopes can be used to experimentally determine reaction mechanisms. 16. Describe what catalysis does, how it effects activation energy and the difference between homogeneous and heterogeneous catalysis. 17. Relate the importance of enzymes as biological catalysts.
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This note was uploaded on 02/08/2012 for the course CHEM 161 taught by Professor Shaklovich during the Spring '10 term at Harvard.

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Chapter_13IM - Chapter 13 Chemical Kinetics This chapter...

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