T2 - Phy sics 7B WS T2 ( rev. 3.0) Page 1 T-2. Thermal...

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Physics 7B WS T2 (rev. 3.0) Page 1 T-2. Thermal Expansion, Kinetic Theory, and Calorimetry Part 1: Thermal Expansion Questions for discussion (Part 1) 1. Imagine a metal disk with a hole cut out of it (an annulus). If you increased the temperature, does the hole get bigger or smaller? Explain. 2. Metal has a larger coefficient of linear expansion than glass. With that in mind, you wish to remove a metal lid from a glass jar. Do you run it under cold water or hot water? Explain? Problems (Part 1) 1. Suppose you have a ring of a metal with a 1 = 2 x 10 -6 (C 0 ) -1 . You wish to put it around a pipe made of metal with a 2 = 3 x 10 -6 (C 0 ) -1 . If at 25 C 0 the inner radius of the ring is 10.0 cm and the outer radius of the pipe is 10.001 cm, what is the temperature that will allow you to slip the ring around the pipe? 2. You have a metal sphere of a 1 = 2 x 10 -6 (C 0 ) -1 . How many degrees do you need to increase the temperature to increase the volume of the sphere by 1%?
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Physics 7B WS T2 (rev. 3.0) Page 2 Part 2: Kinetic Theory The Maxwell Distribution describes the distribution of speeds of individual particles at a given temperature T. The function is:
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This note was uploaded on 11/19/2010 for the course LECTURE 1 taught by Professor Yildiz during the Fall '10 term at Berkeley.

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T2 - Phy sics 7B WS T2 ( rev. 3.0) Page 1 T-2. Thermal...

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