Question 1

All weather phenomena such as clouds and rainfall occur in the _____ layer of the atmosphere.

Accepted Answer

A)  ionosphere 
B)  troposphere 
C)  mesosphere 
D)  stratosphere 
E)  thermosphere 
A)  ionosphere 
B)  troposphere 
C)  mesosphere 
D)  stratosphere 
E)  thermosphere B

Question 2

Rank the following gases in the increasing order of their abundance in the atmosphere. ​
(O2, N2, Ar, Ne, CO2)

Accepted Answer

A)  O2 
B)  N2 
C)  Ar 
D)  Ne 
E)  CO2 
A)  O2 
B)  N2 
C)  Ar 
D)  Ne 
E)  CO2 D

Question 3

Which of these gases is absorbed by the earth's oceans and eventually forms carbonates in rocks and soil?

Accepted Answer

A)  N2 
B)  O2 
C)  Ar 
D)  He 
E)  CO2 
A)  N2 
B)  O2 
C)  Ar 
D)  He 
E)  CO2 E

Question 4

A gas cylinder with a movable  piston has a pressure of 100 torr and a volume of 1.0 L. Determine the pressure of the gas if it is compressed to a volume of 0.75 L at constant temperature.

Accepted Answer

A)  25 torr 
B)  55 torr 
C)  75 torr 
D)  133.33 torr 
E)  150 torr 
A)  25 torr 
B)  55 torr 
C)  75 torr 
D)  133.33 torr 
E)  150 torr

Question 5

Which of these pollutants diminishes the blood's ability to carry oxygen?

Accepted Answer

A)  CO 
B)  PM-2.5 
C)  SO2 
D)  O3 
E)  Pb 
A)  CO 
B)  PM-2.5 
C)  SO2 
D)  O3 
E)  Pb

Question 6

The _____ layer of the atmosphere contains ozone that protects humans from harmful UV rays.

Accepted Answer

A)  ionosphere 
B)  troposphere 
C)  mesosphere 
D)  stratosphere 
E)  thermosphere 
A)  ionosphere 
B)  troposphere 
C)  mesosphere 
D)  stratosphere 
E)  thermosphere

Question 7

Which of the following is a primary source of CO?

Accepted Answer

A)  Emissions from motor vehicles 
B)  Agricultural tilling 
C)  Emissions from battery plants 
D)  Emission from refrigerators 
E)  Construction works 
A)  Emissions from motor vehicles 
B)  Agricultural tilling 
C)  Emissions from battery plants 
D)  Emission from refrigerators 
E)  Construction works

Question 8

Which of the following equations combines Charles's law and Boyle's law?

Accepted Answer

A)  PVT = k 
B)  PT/V = k 
C)  P/VT = k 
D)  PV/T = k 
E)  None of these 
A)  PVT = k 
B)  PT/V = k 
C)  P/VT = k 
D)  PV/T = k 
E)  None of these

Question 9

According to data obtained by NAAQS, which of these pollutants is the most prominent in the United States?

Accepted Answer

A)  CO 
B)  NO2 
C)  SO2 
D)  O3 
E)  Pb 
A)  CO 
B)  NO2 
C)  SO2 
D)  O3 
E)  Pb

Question 10

Which of these pollutants can damage the kidneys, liver, and nervous system?

Accepted Answer

A)  CO 
B)  NO2 
C)  SO2 
D)  O3 
E)  Pb 
A)  CO 
B)  NO2 
C)  SO2 
D)  O3 
E)  Pb

Question 11

A sample of gas occupies 30.0 L at 0 ° C and 1 atm. What temperature will the same gas have in a 22.5 L container with a pressure of 3.5 atm?

Accepted Answer

A)  212 ° C 
B)  284.2 ° C 
C)  386 ° C 
D)  443.64 ° C 
E)  516 ° C 
A)  212 ° C 
B)  284.2 ° C 
C)  386 ° C 
D)  443.64 ° C 
E)  516 ° C

Question 12

Which of these statements about pressure is /are  incorrect ?
I. Pressure is directly proportional to the number of gas molecules.
II. Pressure is directly proportional to temperature.
III. Pressure is directly proportional to volume.

Accepted Answer

A)  I only 
B)  III only 
C)  I and II 
D)  I and III 
E)  II and III 
A)  I only 
B)  III only 
C)  I and II 
D)  I and III 
E)  II and III

Question 13

What is the correct conversion factor between atmospheres and torr?

Accepted Answer

A)  1 atm = 1 torr 
B)  1 atm = 760 torr 
C)  760 atm = 1 torr 
D)  1 atm = 29.92 torr 
E)  29.22 atm = 1 torr 
A)  1 atm = 1 torr 
B)  1 atm = 760 torr 
C)  760 atm = 1 torr 
D)  1 atm = 29.92 torr 
E)  29.22 atm = 1 torr

Question 14

A sample of helium occupies 1.40 L at 0 ° C and 760 torr. What pressure will the same gas exert in a 0.500 L vessel at 100 ° C?

Accepted Answer

A)  371 torr 
B)  624 torr 
C)  1.56 × 103 torr 
D)  2.91 × 103 torr 
E)  4.05 × 103 torr 
A)  371 torr 
B)  624 torr 
C)  1.56 × 103 torr 
D)  2.91 × 103 torr 
E)  4.05 × 103 torr

Question 15

The unit of pressure is _____.

Accepted Answer

A)  kN/m2 
B)  N/mm2 
C)  kN/mm2 
D)  N/m2 
E)  N/m3 
A)  kN/m2 
B)  N/mm2 
C)  kN/mm2 
D)  N/m2 
E)  N/m3

Question 16

Which of the following is the formula for the chemical compound found in airbags?

Accepted Answer

A)  Na3N 
B)  NaN3 
C)  Na2O 
D)  NaO2 
E)  NaN2 
A)  Na3N 
B)  NaN3 
C)  Na2O 
D)  NaO2 
E)  NaN2

Question 17

Which of these is the correct order of the regions of the atmosphere from the lowest altitude to the highest altitude?

Accepted Answer

A)  Ionosphere < mesosphere < troposphere < stratosphere 
B)  Stratosphere < ionosphere < troposphere < mesosphere 
C)  Troposphere < stratosphere < mesosphere < ionosphere 
D)  Troposphere < mesosphere < stratosphere < ionosphere 
E)  Mesosphere < troposphere < stratosphere < ionosphere 
A)  Ionosphere < mesosphere < troposphere < stratosphere 
B)  Stratosphere < ionosphere < troposphere < mesosphere 
C)  Troposphere < stratosphere < mesosphere < ionosphere 
D)  Troposphere < mesosphere < stratosphere < ionosphere 
E)  Mesosphere < troposphere < stratosphere < ionosphere

Question 18

Which of these laws describes the relationship between pressure and volume at a constant temperature?

Accepted Answer

A)  Ideal gas law 
B)  Boyle's law 
C)  Charles's law 
D)  Avogadro's law 
E)  Graham's law 
A)  Ideal gas law 
B)  Boyle's law 
C)  Charles's law 
D)  Avogadro's law 
E)  Graham's law

Question 19

Which of these processes is represented by the given equation?
​
C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + energy

Accepted Answer

A)  Nitrogen fixation 
B)  Combustion 
C)  Photosynthesis 
D)  Respiration 
E)  Ozone depletion 
A)  Nitrogen fixation 
B)  Combustion 
C)  Photosynthesis 
D)  Respiration 
E)  Ozone depletion

Question 20

Which region of the earth's atmosphere supports all Earth-bound life?

Accepted Answer

A)  Thermosphere 
B)  Mesosphere 
C)  Stratosphere 
D)  Troposphere 
E)  Ionosphere 
A)  Thermosphere 
B)  Mesosphere 
C)  Stratosphere 
D)  Troposphere 
E)  Ionosphere

All weather phenomena such as clouds and rainfall occur in the _____ layer of the atmosphere.

Rank the following gases in the increasing order of their abundance in the atmosphere. (O₂, N₂, Ar, Ne, CO₂)

Which of these gases is absorbed by the earth's oceans and eventually forms carbonates in rocks and soil?

A gas cylinder with a movable piston has a pressure of 100 torr and a volume of 1.0 L. Determine the pressure of the gas if it is compressed to a volume of 0.75 L at constant temperature.

Which of these pollutants diminishes the blood's ability to carry oxygen?

The _____ layer of the atmosphere contains ozone that protects humans from harmful UV rays.

Which of the following is a primary source of CO?

Which of the following equations combines Charles's law and Boyle's law?

According to data obtained by NAAQS, which of these pollutants is the most prominent in the United States?

Which of these pollutants can damage the kidneys, liver, and nervous system?

A sample of gas occupies 30.0 L at 0 ° C and 1 atm. What temperature will the same gas have in a 22.5 L container with a pressure of 3.5 atm?

Which of these statements about pressure is /are incorrect ? I. Pressure is directly proportional to the number of gas molecules. II. Pressure is directly proportional to temperature. III. Pressure is directly proportional to volume.

What is the correct conversion factor between atmospheres and torr?

A sample of helium occupies 1.40 L at 0 ° C and 760 torr. What pressure will the same gas exert in a 0.500 L vessel at 100 ° C?

The unit of pressure is _____.

Which of the following is the formula for the chemical compound found in airbags?

Which of these is the correct order of the regions of the atmosphere from the lowest altitude to the highest altitude?

Which of these laws describes the relationship between pressure and volume at a constant temperature?

Which of these processes is represented by the given equation? C₆H₁₂O₆ + 6 O₂ → 6 CO₂ + 6 H₂O + energy

Which region of the earth's atmosphere supports all Earth-bound life?

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Exam 11: The Air Around Us

All weather phenomena such as clouds and rainfall occur in the _____ layer of the atmosphere.

Rank the following gases in the increasing order of their abundance in the atmosphere. ​ (O2, N2, Ar, Ne, CO2)

Which of these gases is absorbed by the earth's oceans and eventually forms carbonates in rocks and soil?

A gas cylinder with a movable piston has a pressure of 100 torr and a volume of 1.0 L. Determine the pressure of the gas if it is compressed to a volume of 0.75 L at constant temperature.

Which of these pollutants diminishes the blood's ability to carry oxygen?

The _____ layer of the atmosphere contains ozone that protects humans from harmful UV rays.

Which of the following is a primary source of CO?

Which of the following equations combines Charles's law and Boyle's law?

According to data obtained by NAAQS, which of these pollutants is the most prominent in the United States?

Which of these pollutants can damage the kidneys, liver, and nervous system?

A sample of gas occupies 30.0 L at 0 ° C and 1 atm. What temperature will the same gas have in a 22.5 L container with a pressure of 3.5 atm?

Which of these statements about pressure is /are incorrect ? I. Pressure is directly proportional to the number of gas molecules. II. Pressure is directly proportional to temperature. III. Pressure is directly proportional to volume.

What is the correct conversion factor between atmospheres and torr?

A sample of helium occupies 1.40 L at 0 ° C and 760 torr. What pressure will the same gas exert in a 0.500 L vessel at 100 ° C?

The unit of pressure is _____.

Which of the following is the formula for the chemical compound found in airbags?

Which of these is the correct order of the regions of the atmosphere from the lowest altitude to the highest altitude?

Which of these laws describes the relationship between pressure and volume at a constant temperature?

Which of these processes is represented by the given equation? ​ C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + energy

Which region of the earth's atmosphere supports all Earth-bound life?

Molecular Reasons

The Chemists Toolbox

Atoms and Elements

Molecules, Compounds, and Chemical Reactions

Chemical Bonding

Organic Chemistry

Light and Color

Nuclear Chemistry

Energy for Today

Energy for Tomorrow: Solar and Other Renewable Energy Sources

The Liquids and Solids Around Us: Especially Water

Acids and Bases: the Molecules Responsible for Sour and Bitter

Oxidation and Reduction

The Chemistry of Household Products

Biochemistry and Biotechnology

Drugs and Medicine: Healing, Helping, and Hurting

The Chemistry of Food

Nanotechnology Online Only

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Rank the following gases in the increasing order of their abundance in the atmosphere. (O₂, N₂, Ar, Ne, CO₂)

Which of these processes is represented by the given equation? C₆H₁₂O₆ + 6 O₂ → 6 CO₂ + 6 H₂O + energy