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Thermodynamics and Chemical Dynamics 131C. Lecture 07. Vibrational Partition Functions.

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Thermodynamics and Chemical Dynamics (Chem 131C) is part of OpenChem: video is part of a 27-lecture undergraduate-level course titled "Thermodynamics and Chemical Dynamics" taught at UC Irvine by Professor Reginald M. Penner.Recorded on April 16, 2013.Slide Information00:05 - Introduction: Vibrational Partition Functions00:17 - Quiz 2 Histogram00:41 - The Symmetry Number04:14 - We also get this answer using my approach.07:09 - Aluminum Chloride Atoms Example09:45 - We also get this answer using my approach (Diagram example)13:03 - What is the symmetry number of: benzene?15:43 - Estimate the rotational partition function for HCl...16:09 - Linear molecules lacking a center of symmetry:16:41 - Estimate the rotational...(formula)19:12 - Calculate the rotational partition function for methane.22:02 - Vibrational States23:23 - ...including the zero point energy, we have...24:52 - this geometric series has the form:25:40 - how big is...28:04 - Example: The triatomic molecule, chlorine dioxide (OCIO) has three vibrational modes...31:42 - Graph: What Does the T-dependence...look like?32:45 - Of course, molecular dissociation would occur before...32:58 - thinking about the partition functions at room temperature, we conclude...33:24 - What about vibrational energy?35:13 - E=RT, Equipartition Theorum36:13 - Here's a midterm exam question from a couple of years ago:37:55 - Midterm exam solution39:10 - Equations Page of Exam41:03 - Calculations and Solution41:40 - If you are asked: calculate the fractions of molecules for which...42:25 - Calculations: ("now one mole of...)44:47 - Example45:07 - B. Now one mole of...45:18 - Example (as in 44:47)For more information and access to courses, lectures, and teaching material, please visit the official UC Irvine OpenCourseWare website at:

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