EXAM 1 W2009 - Name EXAM I (Page 1 of 10) Last Name _ First...

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Last Name _____________________________ First Name _________________ Lab Sec. # ____; TA: _________________________; Lab day/time: ___________ Andreas Toupadakis, Ph.D. Winter 2009 Good luck CHEMISTRY 2B Section C EXAM 1 (circle one) Instructions: CLOSED BOOK EXAM ! No books, notes, or additional scrap paper are permitted. All information required is contained on the exam. Place all work in the space provided. If you require additional space, use the back of the exam. A scientific calculator may be used (if it is a programmable calculator, its memory must be cleared before the exam). This exam has 10 pages total. (1) Read each question carefully. (2) For Parts I and II , there is no partial credit given and only answers marked on this cover page will be graded . (3) The last page contains a periodic table and some useful information. You may remove it for easy access. (4) If you finish early, RECHECK YOUR ANSWERS! U.C. Davis is an Honor Institution Possible Points Points # 1–10 (3 points each) / 30 # 11-14 (6 points each) / 24 # 15 (6 points) / 06 # 16 (10 points) / 10 # 17 (10 points) / 10 # 18 (10 points) / 10 # 19 (10 points) / 10 Total Score (100) / 100 1. A B C D E 2. A B C D E 3. A B C D E 4. A B C D E 5. A B C D E 6. A B C D E 7. A B C D E 8. A B C D E 9. A B C D E 10. A B C D E 1-10 total points: 11. A B C D E 12. A B C D E 13. A B C D E 14. A B C D E 11-14 total points:
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Name Winter 2009 EXAM 1 (Page 2 of 10) Part I: Multiple Choice, Concepts (3 points each) Select the best answer and enter your choice on the cover sheet – No partial credit 1. Choose the CORRECT energy profile for enthalpy and internal energy. ©AT2009WIN 2. A reaction is taking place in an isolated container, i.e. energy transfer in any form is not possible between the system and its surroundings. Before the reaction starts the reactants are at “X” o C. The products of the particular reaction have higher potential energy than the reactants. When the reaction is complete, the temperature of the products is “Y” o C. ©AT2009WIN A. Y = X B. Y > X C. Y < X D. Y = 2X E. none of these 3. What is the formation reaction for table sugar C 6 H 12 O 6 ? ©AT2009WIN A. 12 C(graphite) + 12 H 2 (g) + 6 O 2 (g) 2 C 6 H 12 O 6 (s) B. 6 C(graphite) + 6 H 2 (g) + 3 O 2 (g) C 6 H 12 O 6 (l) C. 6 C(graphite) + 6 H 2 (g) + 3 O 2 (g) C 6 H 12 O 6 (g) D. 6 C(graphite) + 6 H 2 (g) + 3 O 2 (g) C 6 H 12 O 6 (s) E. 6 C(diamond) + 6 H 2 (g) + 3 O 2 (g) C 6 H 12 O 6 (s) 4. Which of the following gases will form the liquid state when it is subjected to compression at room temperature and without cooling it? ©AT2009WIN A. CH 4 (T c = 191 K) B. O 2 (T c = 155 K) C. N 2 (T c = 126 K) D. H 2 (T c = 33 K) E. SO 2 (T c = 431 K) U E T H E T H U E T U H E T H U (A) (B) (C) (D)
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Name W2009 EXAM I(Page 3 of 10 ) 5. Thermal energy of a system is: A. the part the system’s internal energy that changes when the system changes its composition due to a chemical reaction.
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This note was uploaded on 02/03/2010 for the course CHE Organic Ch taught by Professor Nasiri during the Spring '10 term at UC Davis.

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EXAM 1 W2009 - Name EXAM I (Page 1 of 10) Last Name _ First...

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