1. Clicker Questions Chapter 10
Barbara Mowery
York College

2. Which of these is not a unit used to measure gas pressure?
atmosphere
Torr
Pascal
d. pound
Answer: d

3. Which of these is not a unit used to measure gas pressure?
atmosphere
Torr
Pascal
d. pound
Answer: d

4. Which of these is not a characteristic of gases?
compressibility
expansion to fill their containers
formation of homogeneous mixtures
d. All of these are characteristics of gases.
Answer: d

5. Which of these is not a characteristic of gases?
compressibility
expansion to fill their containers
formation of homogeneous mixtures
d. All of these are characteristics of gases.
Answer: d

6. Avogadro’s Boyle’s Charles’s d. Gay-Lussac’s
As a helium-filled balloon rises, its volume increases. This is an example of _______ Law.
Avogadro’s
Boyle’s
Charles’s
d. Gay-Lussac’s
Answer: b

7. Avogadro’s Boyle’s Charles’s d. Gay-Lussac’s
As a helium-filled balloon rises, its volume increases. This is an example of _______ Law.
Avogadro’s
Boyle’s
Charles’s
d. Gay-Lussac’s
Answer: b

8. Avogadro’s Boyle’s Charles’s d. Gay-Lussac’s
A balloon filled with hot air rises. This is an example of _______ Law.
Avogadro’s
Boyle’s
Charles’s
d. Gay-Lussac’s
Answer: c

9. Avogadro’s Boyle’s Charles’s d. Gay-Lussac’s
A balloon filled with hot air rises. This is an example of _______ Law.
Avogadro’s
Boyle’s
Charles’s
d. Gay-Lussac’s
Answer: c

10. number of moles mass pressure d. temperature
Avogadro’s Law states that the volume of a sample of a gas is proportional to the _______ of the gas.
number of moles
mass
pressure
d. temperature
Answer: a

11. number of moles mass pressure d. temperature
Avogadro’s Law states that the volume of a sample of a gas is proportional to the _______ of the gas.
number of moles
mass
pressure
d. temperature
Answer: a

12. Standard temperature and pressure (STP) equals (X) atmosphere(s) and (Y) degrees Celsius.
X = 0, Y = 25
X = 1, Y = 0
X = 1, Y = 25
d. X = 0, Y = 0
Answer: b

13. Standard temperature and pressure (STP) equals (X) atmosphere(s) and (Y) degrees Celsius.
X = 0, Y = 25
X = 1, Y = 0
X = 1, Y = 25
d. X = 0, Y = 0
Answer: b

14. A sample of 2.0 moles of nitrogen (N2) gas at STP occupies a volume of _______ liters.
11.2
22.4
44.8
d. 89.6
Answer: c

15. A sample of 2.0 moles of nitrogen (N2) gas at STP occupies a volume of _______ liters.
11.2
22.4
44.8
d. 89.6
Answer: c

16. A sample of 4.0 grams of methane (CH4) gas at STP occupies a volume of _______ liters.
5.6
11.2
22.4
d. 44.8
Answer: a

17. A sample of 4.0 grams of methane (CH4) gas at STP occupies a volume of _______ liters.
5.6
11.2
22.4
d. 44.8
Answer: a

18. A gas sample with a mass of 88. 0 mg occupies 50
A gas sample with a mass of 88.0 mg occupies 50.0 mL at 750 Torr and 27 degrees Celsius. The gas is _______. CO
CO2
SO2
d. SF6
Answer: b

19. A gas sample with a mass of 88. 0 mg occupies 50
A gas sample with a mass of 88.0 mg occupies 50.0 mL at 750 Torr and 27 degrees Celsius. The gas is _______. CO
CO2
SO2
d. SF6
Answer: b

20. Which value of the gas constant has the units “J/mol-K?”
62.36
8.314
1.987
Answer: d

21. Which value of the gas constant has the units “J/mol-K?”
62.36
8.314
1.987
Answer: d

22. Combining the ideal-gas equation with the density formula demonstrates that as the molar mass of a gas ___, the density of the gas ___.
increases; increases
decreases; increases
increases; decreases
changes; changes in an unpredictable way.
Answer: a

23. Combining the ideal-gas equation with the density formula demonstrates that as the molar mass of a gas ___, the density of the gas ___.
increases; increases
decreases; increases
increases; decreases
changes; changes in an unpredictable way.
Answer: a

24. The partial pressure of each gas in a mixture of gases is proportional to the _______ of the gas.
mass
molecular weight
square root of the molecular weight
d. mole fraction
Answer: d

25. The partial pressure of each gas in a mixture of gases is proportional to the _______ of the gas.
mass
molecular weight
square root of the molecular weight
d. mole fraction
Answer: d

26. Kelvin temperature Celsius temperature number of moles d. pressure
The kinetic-molecular theory of gases states that the average kinetic energy of the gas particles is proportional to the _______ of the gas.
Kelvin temperature
Celsius temperature
number of moles
d. pressure
Answer: a

27. Kelvin temperature Celsius temperature number of moles d. pressure
The kinetic-molecular theory of gases states that the average kinetic energy of the gas particles is proportional to the _______ of the gas.
Kelvin temperature
Celsius temperature
number of moles
d. pressure
Answer: a

28. Neon gas undergoes effusion _______ krypton gas does.
slower than
at the same rate as
twice as fast as
d. four times as fast as
Answer: c

29. Neon gas undergoes effusion _______ krypton gas does.
slower than
at the same rate as
twice as fast as
d. four times as fast as
Answer: c

30. Water is decomposed by electrolysis and the products are collected separately. If 1 L of H2 is produced, ___ L of O2 will be produced. 1 2
some other amount
Answer: a

31. Water is decomposed by electrolysis and the products are collected separately. If 1 L of H2 is produced, ___ L of O2 will be produced. 1 2
some other amount
Answer: a

32. The mean free path is the total distance traveled by a gas molecule.
the distance between two gas molecules.
the distance between a gas molecule and the container wall.
d. the average distance traveled between molecular collisions.
Answer: d

33. The mean free path is the total distance traveled by a gas molecule.
the distance between two gas molecules.
the distance between a gas molecule and the container wall.
d. the average distance traveled between molecular collisions.
Answer: d

34. Which observation illustrates “average kinetic energy is proportional to absolute temperature”?
Most gases will liquefy under intense pressure.
Tire pressure is greater after a car has traveled some distance.
A spray can feels cold to the touch after use.
Gases expand to fill their container.
Answer: b

35. Which observation illustrates “average kinetic energy is proportional to absolute temperature”?
Most gases will liquefy under intense pressure.
Tire pressure is greater after a car has traveled some distance.
A spray can feels cold to the touch after use.
Gases expand to fill their container.
Answer: b

36. A gas is most likely to exhibit ideal behavior at (X) temperature and (Y) pressure.
X = low, Y = low
X = low, Y = high
X = high, Y = low
d. X = high, Y = high
Answer: c

37. A gas is most likely to exhibit ideal behavior at (X) temperature and (Y) pressure.
X = low, Y = low
X = low, Y = high
X = high, Y = low
d. X = high, Y = high
Answer: c

38. According to its van der Waals constants, which gas below best approximates ideal behavior?Ne Ar Kr
d. Xe
Answer: a

39. According to its van der Waals constants, which gas below best approximates ideal behavior?Ne Ar Kr
d. Xe
Answer: a

40. Which gas below has the smallest density at STP?Ar Kr Ne
d. Xe
Answer: c

41. Which gas below has the smallest density at STP?Ar Kr Ne
d. Xe
Answer: c