Lect17-ch15_2

Lect17-ch15_2 - L17Ch15 Spring 2004 PHY 2053C: College...

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1 1 Today: The Laws of Thermodynamics First Law of Thermodynamics: (Yet another Name for Energy Conservation ) Second Law of Thermodynamics: What you always suspected: Disorder is Natural !! L17—Ch15 Spring 2004 PHY 2053C: College Physics A Mot i on , For c e s, Energy Heat Wave s Dr. David M. Lind, Dr. Kun Yang, and Dr. David Van Winkle 1 Question 2 : Thermos
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2 1 Open and Closed Systems D i ff erent types o f systems: Open System : mass and energy can enter and leave the system; Closed System : no mass enters or leaves the system, but there can be energy exchange with environment; Isolated System : no mass or energy can enter or leave the system. 1 The first Law of Thermodynamics (closed Systems) There are two ways to change the internal energy of a system: Heat and Work Change of internal Energy ” = Heat added to + Work done on the system - Heat lost from - Work done by the system Giancoli: Don ' t ask me why they wr te t that way .
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Lect17-ch15_2 - L17Ch15 Spring 2004 PHY 2053C: College...

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