Assignment 6

Assignment 6 - after compression? 3. When Spring Fnally...

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PHYS-232 Heat and Waves - Homework 6 Winter Semester 2008 Due on Tuesday, April 1, 2008 1. Solve problem 4.2.1 of the class notes. 2. In the course of pumping up a bicycle tire, one liter of air at atmospheric pressure is compressed adiabatically to a pressure of 7 atm ( γ air = 1 . 4). (a) What is the Fnal volume occupied by this air after compression? (b) How much work has been done to compress the air? (c) If the temperature of the air was initially 300 K, what is the temperature
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Unformatted text preview: after compression? 3. When Spring Fnally arrives in the mountains, the snow pack may be two meters deep, and is composed of 50% ice and 50% air. Direct sunlight provides about 1000watts / m 2 to earth’s surface, but the snow re±ects 90% of this energy. Estimate how many weeks the snow pack should last if direct solar radiation is the only source of energy. (The latent heat for melting ice is 334 J/g). 4. Solve problem 4.8.1 of the class notes. 1...
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This note was uploaded on 04/29/2008 for the course PHYS 232 taught by Professor Vinals during the Winter '08 term at McGill.

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