Exam1_Fall2007_VersionA

Exam1_Fall2007_VersionA - Chemistry 3615 First Exam Version...

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Page 1 of 17 Chemistry 3615 First Exam – Version A September 26, 2007 _____________________________ Name
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Page 2 of 17 Chemistry 3615 First Exam September 26, 2007 _____________________________ Name Answer Sheet Circle the Correct Letter. If you change your mind, completely erase the wrong answer if you are using pencil. If you are using pen completely black out the wrong answer and clearly indicate your choice for the correct answer. If you need additional scratch paper, just ask. 1. A C D E 11. A B D E 2. A B D E 12. B C D E 3. A B D E 13. A C D E 4. A B C D E 14. A B C E 5. B C D E 15. B C D E 6. A B C D E 16. A B C D E 7. A C D E 17. A B C D E 8. A B C E 18. A C D E 9. A B D E 19. A B C D E 10. A C D E 20. A B C D E Grade = ___*0.8 (Exam Average) + ___*0.1 (Problem Sets) + ____*0.1 (Quizzes) = _____
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Page 3 of 17 Useful Relationships and Definitions p T V V 1 = α T p V V 1 = κ Fdz dW = dW = -p op dV = 2 1 V V op dV p W + + + = = ... V b V RT a b 1 RT V p Z 2 2 () + + + = = ... p RT a b 2 RT a p RT a b RT 1 1 RT V p Z 2 3 z z x y 1 y x = 1 x z z y y x y x z = R = 8.314 J•mol -1 •K -1 = = 0.08206 L•atm•mol -1 •K -1 1 atm = 760 mm Hg = 760 Torr = 101325 Pa 0.001 m 3 = 1 L = 1000 cm 3 V V T U C = p p T H C = dU = dQ + dW H = U + pV (linear) R ) 5 N 3 ( R R 2 3 C V + + = linear) - (non R ) 6 N 3 ( R 2 3 R 2 3 C V + + = F = 2 + C - P
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Page 4 of 17 Other Useful Information: Table 1.5 contains experimental data. Table 1.6 contains values that are specific to the van der Waals equation of state.
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Page 5 of 17 1. What is the molar isometric heat capacity of an ideal diatomic gas at infinite temperature if the diatomic gas is confined to a plane (two-dimensions)? (a) (3/2)R (b) (5/2)R (c) 3R (d) (7/2)R (e) (9/2)R 2. Ethene has a critical molar volume and temperature of 124.0 cm 3 /mol, and 283.1 K, respectively. Assuming the gas behaves as a Berthelot gas , what is the molar work associated with an isothermal reversible compression from 1.00 x 10 -1 m 3 to 1.00 x 10 -4 m 3 at a temperature of 300.0 K? Hint - you will need to determine a and b for a Berthelot gas first.
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This note was uploaded on 09/29/2008 for the course CHEM 3615 taught by Professor Aresker during the Fall '07 term at Virginia Tech.

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Exam1_Fall2007_VersionA - Chemistry 3615 First Exam Version...

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