Lec06 - ME 200 Thermodynamics I Lecture 6 Total Energy...

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ME 200: Thermodynamics I Lecture 6: Total Energy, Internal Energy and Heat Transfer 2.3, 2.4 SP6; 2.30, 2.41 Professor Hukam Mongia Office Hours: MWF 2:30 to 3:30 pm in ME 83 (Other times email for appointment) Email: [email protected] Phone: 765-494-5640 Course Website: https://engineering.purdue.edu/ME200 Course Secretaries: Diana Akers (ME 84) and Marilyn Morrison (ME 100) 8/26/2009 1
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In Lecture 5 Expansion/compression work, d W=pdV; we have been showing distinction between derivative of property (e.g., dV/dt) and work d W/ d t Skipped over other examples of work (Sections 2.2.6 and 2.2.7) and Equation (2.26) In previous lectures D KE+ D PE= D E; and in ideal mechanical world (no air drag, no rolling resistance, no friction, etc.), gravitational force only, D E=0 8/26/2009 2
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This Lecture Joule’s Experiment (p. 53) on thermally isolated systems (adiabatic process) System Energy Interactions Total Energy Internal Energy Heat Transfer 8/26/2009 3
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8/26/2009 4 Google search: Joule’s Experiment - should get 849,000 hits: Interesting examples http://library.thinkquest.org/23718/joule.html http://en.wikipedia.org/wiki/James_Prescott_Joule http://demonstrations.wolfram.com/JoulesExperiment/ http://images.google.com/images?hl=en&source=hp&q=Joule%E2%80%99s+Experiment&um=1&ie=UTF- 8&ei=g9KcSuts4-WdB7GPhJYI&sa=X&oi=image_result_group&ct=title&resnum=4 http://www.geocities.com/bioelectrochemistry/joule.htm http://etc.usf.edu/clipart/35600/35657/joule_35657.htm http://www.springerlink.com/content/x97532735650567g/ http://books.google.com/books?id=NwkXXyXmQdcC&pg=PA169&lpg=PA169&dq=Joule%E2%80%99s+Experiment&source=bl&ots=Wl-
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Lec06 - ME 200 Thermodynamics I Lecture 6 Total Energy...

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