Lecture09

Lecture09 - Physics 7A-2(C/D Professor Chertok Fall 2008...

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Physics 7A-2 (C/D) Professor Chertok Fall, 2008 Lecture 9 Original presentations copyright M. Chertok 2008. All rights reserved.
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M. Chertok, Physics 7A Outline for today 2 Announcements What’s ahead this week Enthalpy (review) Entropy Quiz 9 / Reading assignment Course evaluations
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M. Chertok, Physics 7A Announcements 3 Next week: T-giving Quiz regrades: get all these in ASAP Hard deadline: Dec. 3 bring to my ofFce Quiz 9 is on last day of class. No regrades!
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M. Chertok, Physics 7A T-giving schedule On website calendar: 4 Thanksgiving: No classes 11/27 and 11/28 DLM 17 Schedule: Section Date 1 11/25 2 11/26 3,4,6,7 12/1 5 12/1 8,9,10,11 12/2 DLM18 starts on Tuesday, 12/2
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Questions?
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Thermodynamics
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M. Chertok, Physics 7A C pm measurement Do you expect constant pressure heat capacity to be larger or smaller than that at constant volume ? 7 Clicker question: a) Larger b) Smaller c) Same
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M. Chertok, Physics 7A Cv versus Cp 8 Eth T Q U = Eth = C T = Q Eth T Q U = Eth = Q+W = C T - P V W C = C v = Eth/ T =Q/ T C = C p = Eth/ T + P V/ T
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M. Chertok, Physics 7A Enthalpy 9 H (J) T ( 0 C) 30 100
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M. Chertok, Physics 7A Enthalpy H = U + PV Δ H = Q at constant pressure
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Lecture09 - Physics 7A-2(C/D Professor Chertok Fall 2008...

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