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Thermodynamics and Chemical Dynamics 131C. Lecture 13. The Carnot Cycle.

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Thermodynamics and Chemical Dynamics 131C is part of OpenChem.http://learn.uci.edu/openchem.htmlRecorded on May 2, 2012.Slide Information00:06 - Introduction: The Carnot Cycle (Lecture 13)01:02 - Announcements02:39 - Midterm I Score07:04 - How Am I Doing (Scores)?09:37 - Sadi Carnot10:52 - A heat engine extracts work from a temperature gradient.11:38 - The Carnot Cycle12:43 - The Carnot Cycle (Graph)12:56 - ...ANY process can be decomposed into a large number of Carnot Cycles, so...14:59 - how efficient is a heat engine?16:12 - Let's prove this:16:37 - (Graph) now, this pair of (T,V) data points lie on an adiabat:20:27 - Problem: What is the entropy change...21:05 - Since S is a state function, we can write:24:07 - Formulas: What do we know?25:55 - so (once again) represented in a Temperature-Entropy...26:43 - What if one or more steps of the process are irreversible?30:13 - Rudolf Clausius!30:50 - T-shirt of Clausius31:31 - and a more general statement of this is called the Clausius Inequality31:59 - let's say we transition from state I to state 2...33:02 - according to the Clausius inequality:33:42 -The Second Law of Thermodynamics.33:48 - This equation makes predictions about 3 types of processes:34:30 - If we consider, in particular, an isolated system...35:18 - some simple but important examples:36:55 - some simple but important examples: (II)39:53- Because S, like U, is a state function, you can add...40:34 - example - Calculate the entropy change when Ar gas...For more information and access to courses, lectures, and teaching material, please visit the official UC Irvine OpenCourseWare website at: http://www.ocw.uci.edu

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