chemistry
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Professor Sylvia Ceyer discusses bond enthalpy and the enthalpy of endothermic/exothermic chemical reactions. The heat of formation is defined as Professor Ceyer explains Hess's Law which is used to predict the enthalpy change and conservation of energy, regardless of the path through which it is to be determined. The lecture concludes with a discussion of thermodynamics and spontaneous chance, specifically Gibbs free energy and the concep...more
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After discussing the classic determination of the heat of atomization of graphite by Chupka and Inghram, the values of bond dissociation energies, and the utility of average bond energies, the lecture focuses on understanding equilibrium and rate processes through statistical mechanics. The Boltzmann factor favors minimal energy in order to provide the largest number of different arrangements of "bits" of energy. The slippery concept of di...more
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Professor Sylvia Ceyer breaks down the Octet Rule covering molecules with an odd number of valence electrons, octet deficient molecules, and valence shell expansion. She concludes with ionic bonds as a classical model and mechanism discussing the Harpoon Mechanism, limitations of the model, and energy of interaction vs. the radius of an electron.
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Bromination of benzene catalyzed by iron bromide.
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Cahn-Ingold-Prelog System for Naming Enantiomers.
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Carboxlic Acid Introduction.
