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# Lecture24Notes - Physics 121 Kinetic theory of gases...

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1 Frank L. H. Wolfs Department of Physics and Astronomy, University of Rochester Physics 121, April 17, 2008. Kinetic theory of gases. http://eml.ou.edu/Physics/module/thermal/ketcher/Idg4.avi Frank L. H. Wolfs Department of Physics and Astronomy, University of Rochester Physics 121. April 17, 2008. Course Information Topics to be discussed today: The ideal gas law (review). Molecular interpretation of temperature. The real equation of state. Quiz Frank L. H. Wolfs Department of Physics and Astronomy, University of Rochester Physics 121. April 17, 2008. Homework set # 9 is due on Saturday morning, April 19, at 8.30 am. Midterm Exam # 3 will take place on Tuesday April 22 between 8.00 am and 9.30 am. The material to be covered is the material contained in Chapters 10, 11, 12, and 14. I will distribute the formula sheet that will be attached to the exam later this week via email. I will review the material covered on the exam on Sunday evening. Further details will be announced via email. Extra of±ce hours will be offered by the TAs on Sunday and Monday. The schedule will be announced via email. There will be no class after the exam on Tuesday.

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2 Frank L. H. Wolfs Department of Physics and Astronomy, University of Rochester Physics 121. April 17, 2008. Grades: Worst case scenario: Let’s assume you got 0% on exam 1 and 0% on exams 2. Clearly you would beneft iF we drop one oF these grades! IF we drop one oF these grades, than the one we count will count For 20% oF your fnal grade. IF you get 100% on exam # 3 and 100% on the fnal (and assuming you have 100% on the homework sets, quizzes, and labs) you end up with a fnal grade For 80% or an A!!!!! No one matches this worst case scenario, but realize that even iF you did poorly on the frst two exams, you can still get an A in this course. Frank L. H. Wolfs Department of Physics and Astronomy, University of Rochester The equation oF state oF a gas. A quick review. The equation oF state oF a gas was initially obtained on the basis oF observations. Boyle’s Law (1627 - 1691): pV = constant For gases maintained at constant temperature. Charle’s Law (1746 - 1823): V / T = constant For gases maintained at constant pressure. Gay-Lussac’s Law (1778 - 1850):
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Lecture24Notes - Physics 121 Kinetic theory of gases...

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