1. If two objects are in thermal equilibrium with each other a) They are at the same pressure b) They have the same volume c) They are not in contact with each other d) They are not exchanging heat e) Their temperatures cannot be measured

2. Which of the following places the temperatures in the correct rank, highest to lowest? a) 50 X, 50 W, 50 Y b) 50 X, 50 Y, 50 W c) 50 W, 50 X, 50 Y d) 50 Y, 50 W, 50 X e) 50 Y, 50 X, 50 W

3. Four metal plates all made of the same material are increased in temperature by the same amount. Rank the height increase from most to least. a) 1, 2, 3, 4 b) 1 and 4 tie, 2 and 3 tie c) 1, 4, 2 and 3 tie d) 2 and 3 tie, 1, 4 e) All tie

4. A certain amount of heat Q is applied to a 1 gram sample of 3 different materials, producing a different temperature increase  T in each. Which has the greatest specific heat? a) Material A:  T = 1 C b) Material B:  T = 2 C c) Material C:  T = 3 C d) All have the same specific heat e) We can’t tell from the information given

5. Through which material will there be the most heat transfer via conduction? a) solid iron b) wood c) liquid water d) air e) vacuum

6. Through which 2 materials will there be the most heat transfer via convection? a) solid iron and wood b) wood and liquid water c) liquid water and air d) vacuum and solid iron e) vacuum and air

7. Through which 2 materials will there be the most heat transfer via radiation? a) solid iron and wood b) wood and liquid water c) liquid water and air d) vacuum and solid iron e) vacuum and air

8. If a fixed amount of gas at constant temperature undergoes a increase in volume, what happens to the pressure? a) It goes up b) It goes down c) It stays the same d) It depends on the value of R e) It depends on the number of moles

9. If a fixed amount of gas at constant pressure undergoes an increase in volume, what happens to the temperature? a) It goes up b) It goes down c) It stays the same d) It depends on the value of R e) It depends on the number of moles

10. Consider two rooms of a house, room A and room B. If the (otherwise identical) molecules in room A have twice as much average kinetic energy than the ones in B, how does the temperature of room A compare to the temperature of room B? A)T A = T B B)T A = 2 T B C)T A = ½ T B D)T A = √2 T B E)T A = (3/2) T B

11. If the (otherwise identical) molecules in room A have twice as much average kinetic energy how does the rms velocity of the molecules in room A compare to the rms velocity of the molecules in room B? A)v A = v B B)v A = 2 v B C)v A = ½ v B D)v A = √2 v B E)v A = (3/2) v B

12. As a pot of water boils, the temperature of the water, A)Increases B)Decreases C)Stays the same D)Fluctuates unpredictably E)It depends on the temperature of the stove

13. Water condenses out of the air onto a cold piece of metal. Due to this condensation, the temperature of the air around the metal, A)Increases B)Decreases C)Stays the same D)Fluctuates unpredictably E)It depends on the temperature of the metal

14. The temperature of a solid is held constant and the pressure is lowered. When the pressure gets very close to zero the solid will, A)Become a gas B)Become a liquid C)Stay a solid D)Be at the triple point E)Be at the critical point

15. Ten joules of heat are added to a cylinder of gas causing the piston at the top to rise. How much work does the piston do? A)0 Joules B)5 Joules C)10 Joules D)-10 joules E)You cannot tell from the information given

16. Which of the processes in the diagram produces the least work? A)1 B)2 C)3 D)4 E)All are the same

17. Which of the processes in the diagram has the least change in internal energy? A)1 B)2 C)3 D)4 E)All are the same

18. Which of the processes in the diagram involves the least heat? A)1 B)2 C)3 D)4 E)All are the same

19. Which of the following engines would be useful and possible to build? A)One with work equal to zero B)One with work greater than input heat C)One with input heat equal to zero D)One with input heat greater than work E)One with output heat equal to zero

20. Lets say you wanted to cool your house on a hot day so you buy a refrigerator, plug it in and open the door. Assume your house is insulated. What happens to the temperature of the house? A)It increases B)It decreases C)It stays the same D)It depends on the COP of the refrigerator E)You cannot tell from the information given

21. When water condenses out of the air onto a cold surface, the entropy of the water, A)Increases, since entropy always increases B)Decreases, but that is OK since the 2 nd law does not apply to phase changes C)Decreases, but that is OK since the entropy of the air increases D)Increases, since phases changes always increase entropy E)Remains the same

22. Water is heated on a stove. Which of the following temperature changes involve the greatest entropy change of the water? A)T increased from 20 to 25 C B)T increased from 40 to 45 C C)T increased from 80 to 85 C D)T increased from 90 to 95 C E)All are equal

23. If you put a drop of ink in a bowl of water, what happens to the entropy? A)It increases B)It decreases C)It stays the same D)It depends on the temperature of the water E)It depends on the heat transferred

24. If the ink in the tinted water comes together in a dot, what happens to the entropy? A)It increases B)It decreases C)It stays the same D)It depends on the temperature of the water E)It depends on the heat transferred