Have an account?
Skip to Content
Build your own quiz
Suggestions for you
13 questions
Show Answers
See Preview
- 1. Multiple Choice
James Joule did much to establish the value of the
universal gravitational constant
specific heat capacity of helium
charge of an electron
mechanical equivalent of heat
speed of light
- 2. Multiple Choice
If the average kinetic energy of the molecules in an ideal gas at a temperature of 300 K is E, the average kinetic energy at a temperature of 600 K is
4E
E
2E
- 3. Multiple Choice
Which of the following statements is NOT a correct assumption of the classical model of an ideal gas?
The volume of the molecules is negligible compared with the volume occupied by the gas.
The collisions between molecules are inelastic.
The molecules obey Newton's laws of motion.
The molecules are in random motion.
The only appreciable forces on the molecules are those that occur during collisions.
- 4. Multiple Choice
Which of the following will occur if the average speed of the gas molecules in a closed rigid container is increased?
The pressure of the gas will increase.
The density of the gas will increase.
The density of the gas will decrease.
The pressure of the gas will decrease.
The temperature of the gas will decrease.
- 5. Multiple Choice
For the process X→Y, ΔU is greater than zero and
Q<0 and W = 0
Q<0 and W>0
Q>0 and W<0
Q>0 and W>0
Q>0 and W=0
- 6. Multiple Choice
For the process Y→Z, Q is greater than zero and
W=0 and U<0
W=0 and U>0
W>0 and U>0
W >0 and U=0
W<0 and U=0
- 7. Multiple Choice
An ideal gas confined in a box initially has pressure P. If the absolute temperature of the gas is doubled and the volume of the box is quadrupled, the pressure is
P/4
P/2
P/8
2P
P
- 8. Multiple Choice
Which of the following is always a characteristic of an adiabatic process?
No heat flows into or out of the system (Q = 0).
The temperature does not change (ΔT = 0).
No work is done on or by the system (W = 0).
The internal energy does not change (ΔU = 0).
The pressure does not change (ΔP = 0).
- 9. Multiple Choice
A certain quantity of an ideal gas initially at temperature T0, pressure p0, and volume V0 is compressed to one-half its initial volume. As shown above, the process may be adiabatic (process 1), isothermal (process 2), or isobaric (process 3).
Which of the following is true of the mechanical work done on the gas?
It is greatest for process 1.
It is the same for processes I and 2 and less for process 3.
It is the same for all three processes.
It is the same for processes 2 and 3 and less for process 1.
It is greatest for process 3.
- 10. Multiple Choice
A certain quantity of an ideal gas initially at temperature T0, pressure p0, and volume V0 is compressed to one-half its initial volume. As shown above, the process may be adiabatic (process 1), isothermal (process 2), or isobaric (process 3).
Which of the following is true of the final temperature of this gas?
It is greatest for process 3.
It is the same for processes 1 and 2.
It is greatest for process 2.
It is the same for processes 1 and 3.
It is greatest for process 1
- 11. Multiple Choice
If the gas in a container absorbs 275 joules of heat, has 125 joules of work done on it, and then does 50 joules of work, what is the increase in the internal energy of the gas?
400 J
200 J
350 J
450 J
100 J
- 12. Multiple Choice
In a certain process, 400 J of heat is added to a system and the system simultaneously does 100 J of work. The change in internal energy of the system is
- 300 J
300 J
-100 J
500 J
400 J
- 13. Multiple Choice
An ideal gas may be taken from one state to another state with a different pressure, volume, and temperature along several different paths. Quantities that will always be the same for this process, regardless of which path is taken, include which of the following?
I. The change in internal energy of the gas
II. The heat exchanged between the gas and its surroundings
III. The work done by the gas
I only
I and III only
I, II, and III
II and III only
II only
- Answer choicesTagsAnswer choicesTags