1. © 2015 Pearson Education, Inc. Clicker Questions Chapter 5 Barbara Mowery York College

2. © 2015 Pearson Education, Inc. A moving racquetball has a.kinetic energy. b.potential energy. c.work. d.heat.

3. © 2015 Pearson Education, Inc. A moving racquetball has a.kinetic energy. b.potential energy. c.work. d.heat.

4. © 2015 Pearson Education, Inc. a.kinetic energy. b.potential energy. c.work. d.heat. A motionless racquetball has

5. © 2015 Pearson Education, Inc. a.kinetic energy. b.potential energy. c.work. d.heat. A motionless racquetball has

6. © 2015 Pearson Education, Inc. As the racquetball game progresses, the players perspire, giving off a.kinetic energy. b.potential energy. c.work. d.heat.

7. © 2015 Pearson Education, Inc. As the racquetball game progresses, the players perspire, giving off a.kinetic energy. b.potential energy. c.work. d.heat.

8. © 2015 Pearson Education, Inc. Work = __________ a.energy × distance b.energy ÷ distance c.force × distance d.force ÷ distance

9. © 2015 Pearson Education, Inc. Work = __________ a.energy × distance b.energy ÷ distance c.force × distance d.force ÷ distance

10. © 2015 Pearson Education, Inc. The sum of all of the kinetic and potential energies of a system is called the a.integral energy. b.dynamic energy. c.internal energy. d.work.

11. © 2015 Pearson Education, Inc. The sum of all of the kinetic and potential energies of a system is called the a.integral energy. b.dynamic energy. c.internal energy. d.work.

12. © 2015 Pearson Education, Inc. Which set of values for heat and work will result in a decrease of internal energy? a.q = –150 J; w = +150 J b.q = –150 J; w = +300 J c.q = +150 J; w = –300 J d.q = +300 J; w = –150 J

13. © 2015 Pearson Education, Inc. Which set of values for heat and work will result in a decrease of internal energy? a.q = –150 J; w = +150 J b.q = –150 J; w = +300 J c.q = +150 J; w = –300 J d.q = +300 J; w = –150 J

14. © 2015 Pearson Education, Inc. Which set of values for heat and work will result in an increase of internal energy? a.q = +300 J; w = –150 J b.q = –150 J; w = +150 J c.q = +150 J; w = –300 J d.q = –300 J; w = +300 J

15. © 2015 Pearson Education, Inc. Which set of values for heat and work will result in an increase of internal energy? a.q = +300 J; w = –150 J b.q = –150 J; w = +150 J c.q = +150 J; w = –300 J d.q = –300 J; w = +300 J

16. © 2015 Pearson Education, Inc. A system absorbs heat during an _______ process. a.exothermic b.isothermal c.endothermic d.isobaric

17. © 2015 Pearson Education, Inc. A system absorbs heat during an _______ process. a.exothermic b.isothermal c.endothermic d.isobaric

18. © 2015 Pearson Education, Inc. If X is a state function, then the change in X is given by (X final __ X initial ). a.+ b.– c.× d.÷

19. © 2015 Pearson Education, Inc. If X is a state function, then the change in X is given by (X final __ X initial ). a.+ b.– c.× d.÷

20. © 2015 Pearson Education, Inc. Which group includes only state functions? a.P, T, V b.P, H, w c.H, q, w d.P, R, q, w

21. © 2015 Pearson Education, Inc. Which group includes only state functions? a.P, T, V b.P, H, w c.H, q, w d.P, R, q, w

22. © 2015 Pearson Education, Inc. Which of these is not a state function? a.enthalpy b.internal energy c.temperature d.work

23. © 2015 Pearson Education, Inc. Which of these is not a state function? a.enthalpy b.internal energy c.temperature d.work

24. © 2015 Pearson Education, Inc. Which statement about enthalpy is not correct? a.Enthalpy can be measured in joules per mole. b.Enthalpy is a state function. c.Enthalpy is an extensive property. d.Change in enthalpy is negative for an exothermic reaction.

25. © 2015 Pearson Education, Inc. Which statement about enthalpy is not correct? a.Enthalpy can be measured in joules per mole. b.Enthalpy is a state function. c.Enthalpy is an extensive property. d.Change in enthalpy is negative for an exothermic reaction.

26. © 2015 Pearson Education, Inc. The laboratory technique used to measure heat flow is called a.calorimetry. b.neutralization. c.titration. d.voltammetry.

27. © 2015 Pearson Education, Inc. The laboratory technique used to measure heat flow is called a.calorimetry. b.neutralization. c.titration. d.voltammetry.

28. © 2015 Pearson Education, Inc. When a piece of iron at 356 K is placed in water at 298 K, what happens? a.Energy flows from iron to water. b.Energy flows from water to iron. c.Energy does not flow. d.Energy is not conserved.

29. © 2015 Pearson Education, Inc. When a piece of iron at 356 K is placed in water at 298 K, what happens? a.Energy flows from iron to water. b.Energy flows from water to iron. c.Energy does not flow. d.Energy is not conserved.

30. © 2015 Pearson Education, Inc. A substance’s specific heat is its heat capacity per a.mole. b.gram. c.joule. d.kelvin.

31. © 2015 Pearson Education, Inc. A substance’s specific heat is its heat capacity per a.mole. b.gram. c.joule. d.kelvin.

32. © 2015 Pearson Education, Inc. The specific heat of water is relatively large. This means that in response to a ____ amount of heat, it shows a ____ change in temperature. a. large; large b. small; large c. large; small d. small; small

33. © 2015 Pearson Education, Inc. The specific heat of water is relatively large. This means that in response to a ____ amount of heat, it shows a ____ change in temperature. a. large; large b. small; large c. large; small d. small; small

34. © 2015 Pearson Education, Inc. The standard enthalpy of formation of carbon in its graphite form is ___ kJ/mole. a.100 b.1000 c.1 d.0

35. © 2015 Pearson Education, Inc. a.100 b.1000 c.1 d.0 The standard enthalpy of formation of carbon in its graphite form is ___ kJ/mole.

36. © 2015 Pearson Education, Inc. The standard enthalpy of formation of carbon in its diamond form is +1.88 kJ/mole, which means that diamond is __________ graphite. a.as stable as b.more stable than c.less stable than d.an isotope of

37. © 2015 Pearson Education, Inc. The standard enthalpy of formation of carbon in its diamond form is +1.88 kJ/mole, which means that diamond is __________ graphite. a.as stable as b.more stable than c.less stable than d.an isotope of

38. © 2015 Pearson Education, Inc. 2 H 2 + O 2  2 H 2 O If the reaction above releases 483.6 kJ, then the standard enthalpy of formation of H 2 O = a.–483.6 kJ/mole. b.+483.6 kJ/mole. c.–241.8 kJ/mole. d.+241.8 kJ/mole.

39. © 2015 Pearson Education, Inc. 2 H 2 + O 2  2 H 2 O If the reaction above releases 483.6 kJ, then the standard enthalpy of formation of H 2 O = a.–483.6 kJ/mole. b.+483.6 kJ/mole. c.–241.8 kJ/mole. d.+241.8 kJ/mole.

40. © 2015 Pearson Education, Inc. The average fuel values for proteins, carbohydrates, and fats are, respectively, _______ kcal/g. a.4, 4, and 4 b.4, 4, and 9 c.4, 9, and 4 d.9, 4, and 4

41. © 2015 Pearson Education, Inc. The average fuel values for proteins, carbohydrates, and fats are, respectively, _______ kcal/g. a.4, 4, and 4 b.4, 4, and 9 c.4, 9, and 4 d.9, 4, and 4