390_Problem_Set_3 - Problem Set 3 Chem 3900: Physical...

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1 Problem Set 3 Chem 3900: Physical Chemistry II Spring 2009 Due: in class, Monday, Feb 9 th , 2009 Please make sure to write your name and the recitation you’ll attend. When you print out your work, try to minimize the number of pages. You can do this by printing multiple pages per sheet and/or by using a duplex printer. Problem 1. 0.1 moles of an ideal gas at pressure p = 1.000 bar is confined to a cylinder by a piston. The apparatus is thermostatted at T = 300 K. A weight of mass m is placed on the piston, and the gas expands until its pressure has dropped to 0.9600 bar, lifting the mass through a height of 0.500 m. (1) What is the largest value that the mass m can have in this process? (2) After the expansion is complete, we remove the mass m and replace it with a weight of larger mass m’ . The piston now falls back through 0.500 m, compressing the gas, and returning the gas to its initial thermodynamic state. What is the smallest value that m’ can have in this process?
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390_Problem_Set_3 - Problem Set 3 Chem 3900: Physical...

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