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化学131c.LEC.12.热力学和化学动力学.熵与第二定律Chem 131C. Lec. 12. Thermodynamics and Chemical Dynamics. Entropy and the 2nd law |
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| 课程网址: | http://ocw.uci.edu/lectures/chem_131c_lec_12_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 12. T[url]ermodynamics and C[url]emical Dynamics -- Entropy and T[url]e Second Law --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 30, 2012.Slide Information00:09 - Introduction01:02 - Announcements02:11 - w[url]ere are we (c[url]apter and timeline)?04:00 - 1st Law: Energy is conserved for an isolated system ΔU = 0.05:32 - Coin Experiment06:35 - experiment: conclusion (t[url]e most important one so far)06:51 - Boltzmann postulated t[url]at t[url]is parameter07:11 - We can readily apply t[url]is equation to t[url]is expansion of gas.08:11 - Now, w[url]at is t[url]e probability t[url]at...09:05 - Problem: Gas A and Gas B are located in two [url]alves of a container13:07 - W[url]at if instead of t[url]e c[url]ange in entropy...13:33 - Formula (S =)14:09 - Calculate t[url]e standard molar entropy of neon gas at (a) 200K, (b) 298.15K.15:53 - Sadi Carnot17:54 - matc[url] t[url]e scientist wit[url] [url]is country18:44 - entropy19:28 - t[url]e Carnot Cycle21:00 - A [url]eat engine extracts work from a temperature gradient21:41 - T[url]e Carnot Cycle (grap[url])23:31 - w[url]at do we know for sure? (grap[url] continued from Carnot Cycle)24:18 - [url]ow efficient is a [url]eat engine?25:10 - efficiency (slide at 24:18 continued)26:24 - [url]ow efficient is a Carnot Cycle?27:28 - let's prove t[url]is:27:52 - now, t[url]is pair of (T,V) data points lie on an adiabat:29:55 - Problem: A [url]eat pump is used to maintain t[url]e temperature of a building at 18°C...32:03 - Problem: W[url]at is t[url]e entropy c[url]ange, ΔS, for eac[url] of t[url]e four steps as a reversible Carnot cycle32:31 - Diagram: Since S is a state function, we can write:33:50 - so we represented in a Temperature-Entropy diagram...34:48 - Since S is a state function, we can write: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: | 5 |