Gases Chapter 8 4th Edition Full Test Bank - Chemistry 3 4e | Test Bank Burrows by Andrew Burrows. DOCX document preview.
Chapter 8: Gases
Test Bank
Type: multiple choice question
Title: Chapter 08 Question 01
1) What is the pressure exerted by a column of mercury 43 cm high, given that the density of mercury is 13.6 g cm-3? Give your answer in base SI units.
a. 5736.89 g cm-2 m s-2.
Section reference: 8.2
b. 57.37 g cm-3 m2 s-2.
Section reference: 8.2
c. 57368.88 kg m-1 s-2.
Section reference: 8.2
d. 5736888 g cm-1 s-2.
Section reference: 8.2
Type: multiple response question
Title: Chapter 08 Question 02
2) Which of the following units are commonly used for pressure? Select all that apply.
Section reference: 8.2
a. Pa.
b. bar.
c. kg m s-2.
d. N m-2.
Type: fill-in-blank
Title: Chapter 08 Question 03
3) At constant temperature, the volume of a fixed amount of gas ______________ with increasing pressure.
Section reference: 8.1
a. decreases
Type: true-false
Title: Chapter 08 Question 04
4) As the temperature of a fixed amount of gas, increases at constant pressure, its volume decreases.
a. True
Section reference: 8.1
b. False
Section reference: 8.1
Type: true-false
Title: Chapter 08 Question 05
5) Avogadro’s law states that at constant pressure and temperature, a different number of molecules will be present in equal volumes of oxygen and carbon dioxide.
a. True
Section reference: 8.1
b. False
Section reference: 8.1
Type: multiple choice question
Title: Chapter 08 Question 06
6) Calculate the pressure (in Pa) required to compress 0.25 dm3 of a gas at 1 atm to a volume of 0.10 dm3 at the same temperature?
a. 2.5
Section reference: 8.2
b. 2.5 × 105.
Section reference: 8.2
c. 1.0
Section reference: 8.2
d. 1.01 × 105.
Section reference: 8.2
Type: multiple choice question
Title: Chapter 08 Question 07
7) What would be the volume (in dm3 ) of N2 at 293 K and 720 Torr if it occupied 12.5 dm3 at 329 K and 0.947 atm?
a. 14.04
Section reference: 8.1, 8.2
b. 12.5
Section reference: 8.1, 8.2
c. 11.13
Section reference: 8.1, 8.2
d. 11.84
Section reference: 8.1, 8.2
Type: multiple choice question
Title: Chapter 08 Question 08
8) A balloon is filled at 1 atm with gas that occupies 2.3 dm3 in a laboratory at 19 °C. The balloon is then taken from this laboratory to a tropical greenhouse at 1 atm where the temperature is 38 °C. What is the resulting volume (dm3) of the balloon?
a. 4.6
Section reference: 8.1, 8.2
b. 2.3
Section reference: 8.1, 8.2
c. 2.16
Section reference: 8.1, 8.2
d. 2.45
Section reference: 8.2
Type: fill-in-blank
Title: Chapter 08 Question 09
9) Combining Boyle’s law, Charles’s law and Avogadro’s law gives the _____ gas equation.
Section reference: 8.2
a. ideal
Type: multiple response question
Title: Chapter 08 Question 10
10) The gas constant R can be expressed in different units. Select all that apply.
Section reference: 8.2
a. N m K-1 mol-1.
b. dm3 atm mol-1 K-1.
c. J K-1 mol-1.
d. dm3 Torr K-1 mol-1.
Type: multiple choice question
Title: Chapter 08 Question 11
11) A 28.0 dm3 gas cylinder at 5.2 atm and 23 °C contains only carbon monoxide gas. What is the mass (in kg) of carbon monoxide in the tank?
a. 168.
Section reference: 8.2
b. 0.168
Section reference: 8.2
c. 0.021
Section reference: 8.2, 1.2
d. 1.656 × 10-6.
Section reference: 8.2, 1.2
Type: multiple choice question
Title: Chapter 08 Question 12
12) A balloon is filled with 39.3 g of helium at 29 °C and 2.75 atm. What is the volume of the balloon in dm3?
a. 88.52
Section reference: 8.2, 1.2
b. 8.852 × 10-2.
Section reference: 8.2, 1.2
c. 8.97 × 106.
Section reference: 8.2, 1.2
d. 8.50
Section reference: 8.2, 1.2
Type: multiple choice question
Title: Chapter 08 Question 13
13) A 5.2 dm3 gas cylinder containing 822 g of neon is heated until the pressure reaches 232 atm. What is the temperature in °C of the gas?
a. - 273.15
Section reference: 8.2, 1.2
b. 87.80
Section reference: 8.2, 1.2
c. 360.95
Section reference: 8.2, 1.2
d. -255.26
Section reference: 8.2, 1.2
Type: multiple choice question
Title: Chapter 08 Question 14
14) Equal volumes of carbon dioxide and a second gas weigh 32.00 g and 14.67 g respectively under the same experimental conditions. Which of the following is the unknown gas?
a. He
Section reference: 8.1
b. O2
Section reference: 8.1
c. Ne
Section reference: 8.1
d. Ar
Section reference: 8.1
Type: multiple choice question
Title: Chapter 08 Question 15
15) A small bottle of nitrogen gas, volume 6.5 dm3 is stored at 22 °C and a pressure of 63 bar. Calculate the pressure (in bar) inside the bottle when the temperature increases to 28 °C; assume the gas behaves as an ideal gas.
a. 49.5
Section reference: 8.2, 1.2
b. Not enough information to calculate the new pressure.
Section reference: 8.2, 1.2
c. 7.08 × 10-4
Section reference: 8.2, 1.2
d. 64.28
Section reference: 8.2, 1.2
Type: multiple choice question
Title: Chapter 08 Question 16
16) A sealed reaction vessel volume is 0.5 dm3 contains argon gas at 1 atm and 21 °C. Assuming that argon behaves ideally under these conditions calculate the mass of Ar in the reaction vessel.
a. 0.11 g.
Section reference: 8.2
b. 0.0005 g.
Section reference: 8.2
c. 0.83 g.
Section reference: 8.2
d. 8.17 × 10-6 g.
Section reference: 8.2
Type: multiple choice question
Title: Chapter 08 Question 17
17) A reaction vessel is fitted with a syringe. It contains gas at 1 atm and 18 °C. Calculate the pressure if the syringe is moved so that it is a quarter of its original volume. Assume temperature to be constant.
a. 1 atm.
Section reference: 8.2
b. 0.25 atm.
Section reference: 8.2
c. 101 325 Pa.
Section reference: 8.2
d. 4 atm
Section reference: 8.2
Type: true-false
Title: Chapter 08 Question 18
18) The IUPAC definition of standard ambient temperature and pressure, SATP, is 298.15 K and 1 atm.
a. True
Section reference: 8.2
b. False
Section reference: 8.2
Type: multiple choice question
Title: Chapter 08 Question 19
19) Calculate the molar volume of one mole of an ideal gas under conditions of standard ambient pressure and temperature.
a. 0.0248 m3 .
Section reference: 8.2
b. 0.0245 m3.
Section reference: 8.2
c. 0.0227 m3 .
Section reference: 8.2
d. 0.0224 m3.
Section reference: 8.2
Type: multiple choice question
Title: Chapter 08 Question 20
20) A gas-mixing cylinder is filled with a mixture of He, Ne and Ar, in a 1:1:2 ratio. The total pressure in the gas-mixing cylinder is 3.29 × 105 Pa. Calculate the partial pressure of helium in the mixture.
a. 164500 Pa.
Section reference: 8.3
b. 75000 Pa.
Section reference: 8.3
c. 82250 Pa.
Section reference: 8.3
d. 25000 Pa.
Section reference: 8.3
Type: multiple response question
Title: Chapter 08 Question 21
21) The kinetic molecular theory describes gas behaviour in terms of the movement of molecules. In developing the model, which assumptions were made? Select all that apply.
Section reference: 8.4
a. The motion of the gas molecules is constant and random.
b. Gas molecules have negligible size compared to the vessel in which the gas is contained.
c. Any collisions between the molecules and the walls of the container will increase the energy of the molecules.
d. The molecules do not interact with each other.
Type: multiple choice question
Title: Chapter 08 Question 22
22) Calculate the root mean square speed of argon gas at 15 °C. Give your answer in m s-1.
a. 96.
Section reference: 8.5
b. 424.
Section reference: 8.5
c. 13.
Section reference: 8.5
d. 3.
Section reference: 8.5
Type: multiple choice question
Title: Chapter 08 Question 23
23) Calculate the root mean square speed of ammonia gas at 17 °C. Give your answer in m s-1.
a. 158.
Section reference: 8.5
Correct/incorrect
b. 21.
Section reference: 8.5
Correct/incorrect
c. 5.
Section reference: 8.5
d. 652.
Section reference: 8.5
Type: multiple choice question
Title: Chapter 08 Question 24
24) A 0.25 dm3 sealed container is filled with 3 mol of He, with a root mean square molecular speed, c = 1250 m s-1. Find the pressure exerted by the gas (in k Pa).
a. 25.02
Pa.
Section reference: 8.4, 1.2
b. 0.25 × 105.
Pa.
Section reference: 8.4, 1.2
c. 1.51 × 1028.
Pa.
Section reference: 8.4, 1.2
d. 1.51 × 1025.
Pa.
Section reference: 8.4, 1.2
Type: multiple response question
Title: Chapter 08 Question 25
25) The molecular speed distribution of neon will change with temperature. Select all that apply.
Section reference: 8.5
a. At higher temperatures, the average speed will be greater than at lower temperatures.
b. At higher temperatures, the spread of speeds will be greater than at lower temperatures.
c. At lower temperatures, the distribution of speeds will be greater than at higher temperatures.
d. At lower temperatures, the average speed will be greater than at higher temperatures.
Type: true-false
Title: Chapter 08 Question 26
26) 1 mol of Xe gas at 345 K will have a greater distribution of molecular speeds and higher average speed than 1 mol of He at the same temperature.
a. True
Section reference: 8.5
b. False
Section reference: 8.5
Type: matching question
Title: Chapter 08 Question 27
27) Rank the following gases, CO, CO2, O2, and O3 in order of rate of effusion (from highest to lowest rate) through a porous film under the same experimental conditions.
Section reference: 8.5
a. O3 = 4
b. O2 = 2
c. CO2 = 3
d. CO = 1
Type: multiple choice question
Title: Chapter 08 Question 28
28) 35 mol of nitrogen gas passes through a membrane in 30 minutes. How long will it take for the same amount of carbon dioxide to pass through the same membrane? Give your answer to the nearest whole minute.
a. 38 min.
Section reference: 8.5
b. 24 min.
Section reference: 8.5
c. 47 min.
Section reference: 8.5
d. 19 min.
Section reference: 8.5
Type: multiple choice question
Title: Chapter 08 Question 29
29) Calculate the relative rates of effusion of helium, neon, argon, and xenon through a gas cylinder regulator.
a. 1:2.25:3.16:5.73
Section reference: 8.5
b. 1:0.45:0.32:0.17
Section reference: 8.5
c. 1:0.20:0.10:0.03
Section reference: 8.5
d. 1:0.45:0.71:0.55
Section reference: 8.5
Type: matching question
Title: Chapter 08 Question 30
30) Match the characteristic property of molecules in a gas with its description.
Section reference: 8.5
a. collision cross section, σ = target area of a molecule
b. collision frequency, Z = number of collisions per second
c. mean free path, λ = average distance travelled by a molecule between collisions
d. mean speed, 
= product of collision frequency and mean free path
Type: multiple choice question
Title: Chapter 08 Question 31
31) How many collisions will O2 undergo in 1 s at SATP? (For O2 σ = 0.40 nm2, 
444 m s-1 at 298 K.)
a. 6.1 × 109.
Section reference: 8.5
b. 6.1 × 1027.
Section reference: 8.5
c. 6.1 × 1018.
Section reference: 8.5
d. 6.1 × 104.
Section reference: 8.5
Type: multiple choice question
Title: Chapter 08 Question 32
32) Calculate the pressure (in Pa) at which O2 has a mean free path of 0.5 cm. (For O2, σ = 0.40 nm2, 
444 m s-1 at 298 K).
a. 1.46 × 10-17.
Section reference: 8.5
b. 1.46 × 10-8.
Section reference: 8.5
c. 1.46
Section reference: 8.5
d. 1.46 × 10-2.
Section reference: 8.5
Type: fill-in-blank
Title: Chapter 08 Question 33
33) The ideal gas equation is an example of a limiting law. It describes well the behaviour of gases as gas pressure tends to ____.
Section reference: 8.6
a. zero
Type: multiple response question
Title: Chapter 08 Question 34
34) The van der Waals equation for gases is 
The van der Waals constants a and b attempt to correct for the behaviour of real gases relative to ideal behaviour. The constants correct for which of the following: select all that apply.
Section reference: 8.6
a. The reduced pressure of real gases with respect to ideal gases.
b. The increased pressure of real gases with respect to ideal gases.
c. The reduced volume available for real gas molecules to move in.
d. The increased volume available for real gas molecules to move in.
Type: multiple choice question
Title: Chapter 08 Question 35
35) A reaction vessel (volume 0.5 dm3) is filled with 3 mol of hydrogen gas at 25 °C. Calculate the pressure, (in Pa) it exerts using the van der Waals equation. For hydrogen, the van der Waals constants are a = 0.025 Pa m6 mol-2 and b = 2.7 × 10-5 m3 mol-1.
a. 1.68 × 107.
Section reference: 8.6
b. 1.49 × 107.
Section reference: 8.6
c. 5.88 × 105.
Section reference: 8.6
d. - 9 × 105.
Section reference: 8.6