Open Yale CoursesCHEM 125: Freshman Organic ChemistryLecture 36 - Bond Energies, the Boltzmann Factor and Entropy<< previous session | next session >>Overview:After discussing the classic determination of the heat of atomization of graphite by Chupka and Inghram, thevalues of bond dissociation energies, and the utility of average bond energies, the lecture focuses onunderstanding equilibrium and rate processes through statistical mechanics. The Boltzmann factor favorsminimal energy in order to provide the largest number of different arrangements of "bits" of energy. Theslippery concept of disorder is illustrated using Couette flow. Entropy favors "disordered arrangements"because there are more of them than there are of recognizable ordered arrangements.Problem sets/Reading assignment:Reading assignments, problem sets, PowerPoint presentations, and other resources for this lecture can beaccessed from Professor McBride's on-campus course website, which was developed for his Fall 2008
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