practice-final_c

practice-final_c - Name Student ID Number Lab TA Name and...

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Page 1 Name_________________________________________ Student ID Number______________________ Lab TA Name and Time______________________ Spring 0000 CHEMISTRY 2B Final Exam (8 pages) 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. (1) Read each question carefully. (2) There is no partial credit for the problems in Part I and Part II. (3) Solve easy problems first, then work on the rest. (4) If you finish early, RECHECK YOUR ANSWERS! (5) Useful Equations and Data are on page 9 U.C. Davis is an Honor Institution Possible Points Points concepts: 30 points short calc: 30 points long answer: 60 points REGRADE BONUS 4 Total Score (124) Concepts 1. 2. 3. 4. 5 6. 7. 9. 10. total points: Short Calculation 11. 12. 13. 14. 15. 16. Full answer 17. 18. 19. 20. total points:
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Page 2 Part I: Multiple Choice, Concepts Circle the correct answer – No partial credit 1. (3 pts) The first law of thermodynamics states that A. the total energy of a closed system decreases for a spontaneous process B. the total entropy decreases for a spontaneous process C. the total energy is separated into heat and work as U = w – q D. the total energy is separated into heat and work as U = q + w E. the total energy of an isolated system is constant 2. (3 pts) Which of the following is most volatile? A) CBr 3 H B) CCl 4 C) CCl 3 H D) CBr 4 E) CBr 2 H 2 3. (3 pts) The phase diagram for a pure substance is given below. The substance is stored in a container at 150 atm at 25°C. Describe what happens if the container is opened at 25°C. A) The liquid in the container freezes. D) The solid in the container sublimes. B) The liquid in the container vaporizes. E) The solid in the container melts. C) The vapor in the container escapes.
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practice-final_c - Name Student ID Number Lab TA Name and...

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