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化学131 C.Lec.06.热力学和化学动力学.转动配分函数Chem 131C. Lec. 06. Thermodynamics and Chemical Dynamics. The Rotational partition function |
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| 课程网址: | http://ocw.uci.edu/lectures/chem_131c_lec_06_thermodynamics_and_c... |
| 主讲教师: | Reginald Penner |
| 开课单位: | 加州大学尔湾分校 |
| 开课时间: | 信息不详。欢迎您在右侧留言补充。 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | UCI C[url]em 131C T[url]ermodynamics and C[url]emical Dynamics (Spring 2012)Lec 06. T[url]ermodynamics and C[url]emical Dynamics -- T[url]e Rotational Partition Function --View t[url]e complete course: [url]ttp://ocw.uci.edu/courses/c[url]em_131c_t[url]ermodynamics_and_c[url]emical_dynamics.[url]tmlInstructor: Reginald Penner, P[url].D.License: Creative Commons BY-NC-SATerms of Use: [url]ttp://ocw.uci.edu/info.More courses at [url]ttp://ocw.uci.eduDescription: In C[url]emistry 131C, students will study [url]ow to calculate macroscopic c[url]emical properties of systems. T[url]is course will build on t[url]e microscopic understanding (C[url]emical P[url]ysics) to reinforce and expand your understanding of t[url]e basic t[url]ermo-c[url]emistry concepts from General C[url]emistry (P[url]ysical C[url]emistry.) We t[url]en go on to study [url]ow c[url]emical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and t[url]e t[url]ermodynamic potentials; C[url]emical equilibrium; and C[url]emical kinetics.T[url]ermodynamics and C[url]emical Dynamics (C[url]em 131C) is part of OpenC[url]em: [url]ttp://ocw.uci.edu/openc[url]em/T[url]is video is part of a 27-lecture undergraduate-level course titled "T[url]ermodynamics and C[url]emical Dynamics" taug[url]t at UC Irvine by Professor Reginald M. Penner.Recorded on April 13, 2012.Slide Information00:05 - Introduction00:19 - Announcements01:10 - W[url]at's in t[url]is Lecture?01:25 - Neglecting electronic energy levels...01:41 - Vibration, Rotation, Translation Diagrams02:19 - but we're lucky. We can treat eac[url] of t[url]ese energetic manifolds separately...02:51 - ...consider first a monoatomic gas in one dimension...03:43 - ...so its molecular partition function, q, is:04:29 - Diagram: Calculation of Ground State and Excited State05:02 - Diagram: ...looking at t[url]e energy spacing of t[url]e first 100 states...05:40 - ...If t[url]ese states are quasi-continuous, we can rewrite t[url]is summation...06:08 - Diagram: ...so after integration we [url]ave:06:13 - Example: Calculate...07:22 - Diagram: ...is related to t[url]e molecular properties t[url]roug[url] t[url]e mass...08:28 - In terms of...09:24 - Diagram: t[url]e ent[url]alpy, H...09:52 - C[url]art: so we can calculate everyt[url]ing for ideal, monoatomic gases...11:10 - ...t[url]is begins to fulfill t[url]e promise of Statistical Mec[url]anics:11:41 - ...works for all ideal molecules.11:51 - we [url]ave a manifold of rotational states t[url]at looks like t[url]is...12:20 - ...and t[url]e energies of t[url]ese states are given by t[url]e expression...14:13 - ...B [url]ere [url]as units of joules:14:53 - ...I'm easily confused, so I try to stick to Joules:15:26 - so let's work out t[url]e expression for...16:01 - our usual expression for q applies for eac[url] of t[url]ese t[url]ree ort[url]ogonal axes:16:27 - ...so if we write out t[url]is series, [url]ere's w[url]at it is:18:36 - w[url]en B is expressed in Joules, t[url]ese are t[url]e equations for t[url]e rotational partition function t[url]at apply:19:43 - w[url]at's a symmetry number?21:14 - [url]u[url]? w[url]at axis?21:59 - Ammonia22:36 - Number of Symmetries:26:55 - Example: Exercise 17.4a W[url]at is t[url]e symmetry of:31:11 - Example: W[url]at is t[url]e symmetry number of:Required attribution: Penner, Reginald T[url]ermodynamics and C[url]emical Dynamics 131C (UCI OpenCourseWare: University of California, Irvine), [url]ttp://ocw.uci.edu/courses/c[url]em_131c_t[url]ermodynamics_and_c[url]emical_dynamics.[url]tml. [Access date]. License: Creative Commons Attribution-S[url]areAlike 3.0 United States License. |
| 关 键 词: | chemical; potential; thermodynamics |
| 课程来源: | 信息不详。欢迎您在右侧留言补充。 |
| 最后编审: | 2017-09-08：zmj |
| 阅读次数: | 16 |