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Hw2 - temperature of the gas in S3 reaches 348 K Find the...

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CHEM 342 Physical Chemistry I Problem set 2 Due 09/13/2010 (Monday) 1. Textbook 2.2 2. Textbook 2.6 3. Textbook 2.12 4. Textbook 2.20 5. Textbook 2.22 6. Textbook 2.26. If such a gas is subjected to a Joule-Thomson expansion, will the temperature increase, decrease, or remain the same? 7. Textbook 2.32 8. A cylindrical container of a fixed volume is divided into three sections, S1, S2, S3. The sections S1 and S2 are separated by an adiabatic piston, whereas the sections S2 and S3 are separated by a heat-conducting piston. The pistons can slide along the walls of the cylinder without friction. Each section of the cylinder contains 1.00 mol of a perfect diatomic gas. Initially, the gas pressure in all three sections is 1.00 bar and the temperature is 298 K. The gas in S1 is heated slowly until the
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Unformatted text preview: temperature of the gas in S3 reaches 348 K. Find the final temperature, pressure and volume, as well as the change of internal energy for each section. Determine the total energy supplied to the gas in S1. 9. Solve the previous problem for the case where both pistons are (a) adiabatic and (b) heat-conducting. 10. One mole of an ideal gas at 27 C and 10 atm is expanded adiabatically to the final pressure of 1.0 atm against a constant opposing pressure of 1.0 atm. Calculate the final temperature of the gas, q, w, U, H for thefollowing two cases C v = (3/2)R and C v =(5/2)R. Repeat the problem assuming that the expansion is reversible....
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