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Chem 209 > Air > Flashcards

Air Flashcards

1
Q

The process for removing CO2 from the atmosphere or collecting it from large emission sources and storing it in underground reservoirs is known as

A

carbon sequestration

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2
Q

Usually the symptom of carbon monoxide poisoning is

A

drowsiness

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3
Q

Which of the following statements is NOT true?

A

A) The temperature of the mesosphere falls as you get farther from the earth’s surface.
B) The temperature of the stratosphere rises as you get farther from the earth’s surface.
C) The temperature of the stratosphere falls as you get farther from the earth’s surface.*
D) The temperature of the troposphere falls as you get farther from the earth’s surface.

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4
Q

Sulfur dioxide is readily absorbed in the respiratory system where it is

A

a powerful irritant

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5
Q

Organic substances that undergo significant evaporation at ordinary temperatures are

A

volatile organic compounds (VOCs).

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6
Q

The major source of photochemical smog is

A

automobile emissions

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7
Q

The word smog is believed to have originated in

A

London

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8
Q

Catalytic converters on automobiles are designed to reduce the emission of

A

carbon monoxide

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9
Q

Urban smog contains several air pollutants, including ozone. For a typical sunny day, when would you expect the concentration of ozone to be highest?

A

6p.m.

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10
Q

An electrostatic precipitator is a device used

A

to remove particles from smokestack gases

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11
Q

One of the results of ozone pollution in an urban environment is

A

shortening the life of automobile tires

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12
Q

Which one of the following is NOT one of the principal components required for photochemical smog?

A

sulfur dioxide

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13
Q

The major source of all air pollutants in the United States is

A

motor vehicle emissions

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14
Q

Most hydrocarbons in the atmosphere in rural areas arise from

A

natural sources

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15
Q

The complete oxidation of coal produces

A

carbon dioxide(CO2)

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16
Q

All of the following statements about carbon monoxide (CO) pollution in the United states are true EXCEPT

A

A) people exposed to carbon monoxide have a higher risk of heart attacks.
B) carbon monoxide makes up over 60% (by mass) of all air pollutants emitted into the atmosphere.
C) the major source of carbon monoxide emissions is industrial sources, such as metal processing.*
D) the concentration of carbon monoxide is higher in urban areas than in rural areas.

17
Q

The second most abundant component of dry air is

A

oxygen

18
Q

An atmospheric inversion is a phenomenon that may have disastrous effects with respect to air pollution. An atmospheric inversion occurs when a

A

lower layer of cool air is trapped by an upper layer of warmer air.

19
Q

Indoor “air cleaners” are often advertized. However, some air cleaners actually generate which of the following pollutants?

A

ozone

20
Q

Most hydrocarbons in the urban areas arise from

A

processing and use of gasoline

21
Q

The concentration of which component of the atmosphere has increased dramatically since the beginning of the industrial era?

A

carbon dioxide

22
Q

The two principal sources of acid rain are ________ emissions from power plants and ________ emissions from automobiles and power plants

A

sulfur dioxide, nitrogen monoxide

23
Q

Acid rain is precipitation with a pH

A

below 5.6

24
Q

Which of the following statements about ozone is correct?

A

Ozone is a pollutant in the troposphere but not in the stratosphere.

25
Q

Which one of the following is NOT a property of carbon monoxide?

A

undetectable

26
Q

In order for nitrogen to be used by most plants and all animals, it must be

A

fixed

27
Q

The most abundant component of dry air is

A

nitrogen

28
Q

A definition of a pollutant is a chemical

A

in the wrong place and at the wrong concentration.

29
Q

Hemoglobin is the blood protein responsible for the transport of oxygen. Carbon monoxide disturbs oxygen transport by

A

binding more strongly to hemoglobin than oxygen.

30
Q

The day starts out bright and sunny. Later, a brown haze develops. This indicates the presence o

A

nitrogen dioxide

31
Q

The layer of the atmosphere that is closest to the surface of the earth is the

A

troposphere

32
Q

Ozone (O3) and oxygen (O2) are

A

allotropes

33
Q

Unburned carbon produced during the inefficient burning of coal is called

A

soot

34
Q

Radon is released from soil and rock where it is produced because radon is a

A

gas

35
Q

Pollution levels are not affected by temperature inversions

A

false

Chem 209 (11 decks)

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