Transcript 10_Clickers.pptx

Clicker Questions
Chapter 10
Barbara Mowery
York College
© 2015 Pearson Education, Inc.
Which of these is not a unit
used to measure gas
pressure?
a.
b.
c.
d.
atmosphere
Torr
Pascal
pound
© 2015 Pearson Education, Inc.
Which of these is not a unit
used to measure gas
pressure?
a.
b.
c.
d.
atmosphere
Torr
Pascal
pound
© 2015 Pearson Education, Inc.
Which of these is not a
characteristic of gases?
a. compressibility
b. expansion to fill their containers
c. formation of homogeneous
mixtures
d. All of these are characteristics
of gases.
© 2015 Pearson Education, Inc.
Which of these is not a
characteristic of gases?
a. compressibility
b. expansion to fill their containers
c. formation of homogeneous
mixtures
d. All of these are
characteristics of gases.
© 2015 Pearson Education, Inc.
As a helium-filled balloon
rises, its volume increases.
This is an example of
_______ Law.
a.
b.
c.
d.
Avogadro’s
Boyle’s
Charles’s
Gay-Lussac’s
© 2015 Pearson Education, Inc.
As a helium-filled balloon
rises, its volume increases.
This is an example of
_______ Law.
a.
b.
c.
d.
Avogadro’s
Boyle’s
Charles’s
Gay-Lussac’s
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A balloon filled with hot air
rises. This is an example of
_______ Law.
a.
b.
c.
d.
Avogadro’s
Boyle’s
Charles’s
Gay-Lussac’s
© 2015 Pearson Education, Inc.
A balloon filled with hot air
rises. This is an example of
_______ Law.
a.
b.
c.
d.
Avogadro’s
Boyle’s
Charles’s
Gay-Lussac’s
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Avogadro’s Law states that
the volume of a sample of a
gas is proportional to the
_______ of the gas.
a.
b.
c.
d.
number of moles
mass
pressure
temperature
© 2015 Pearson Education, Inc.
Avogadro’s Law states that
the volume of a sample of a
gas is proportional to the
_______ of the gas.
a.
b.
c.
d.
number of moles
mass
pressure
temperature
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Standard temperature and
pressure (STP) equals (X)
atmosphere(s) and (Y)
degrees Celsius.
a.
b.
c.
d.
X = 0, Y = 25
X = 1, Y = 0
X = 1, Y = 25
X = 0, Y = 0
© 2015 Pearson Education, Inc.
Standard temperature and
pressure (STP) equals (X)
atmosphere(s) and (Y)
degrees Celsius.
a.
b.
c.
d.
X = 0, Y = 25
X = 1, Y = 0
X = 1, Y = 25
X = 0, Y = 0
© 2015 Pearson Education, Inc.
A sample of 2.0 moles of
nitrogen (N2) gas at STP
occupies a volume of _______
liters.
a.
b.
c.
d.
11.2
22.4
44.8
89.6
© 2015 Pearson Education, Inc.
A sample of 2.0 moles of
nitrogen (N2) gas at STP
occupies a volume of _______
liters.
a.
b.
c.
d.
11.2
22.4
44.8
89.6
© 2015 Pearson Education, Inc.
A sample of 4.0 grams of
methane (CH4) gas at STP
occupies a volume of _______
liters.
a.
b.
c.
d.
5.6
11.2
22.4
44.8
© 2015 Pearson Education, Inc.
A sample of 4.0 grams of
methane (CH4) gas at STP
occupies a volume of _______
liters.
a.
b.
c.
d.
5.6
11.2
22.4
44.8
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A gas sample with a mass of
88.0 mg occupies 50.0 mL at
750 Torr and 27 degrees
Celsius. The gas is _______.
a.
b.
c.
d.
CO
CO2
SO2
SF6
© 2015 Pearson Education, Inc.
A gas sample with a mass of
88.0 mg occupies 50.0 mL at
750 Torr and 27 degrees
Celsius. The gas is _______.
a.
b.
c.
d.
CO
CO2
SO2
SF6
© 2015 Pearson Education, Inc.
Which value of the gas constant
has the units “J/mol-K?”
a.
b.
c.
d.
62.36
8.314
1.987
0.08206
© 2015 Pearson Education, Inc.
Which value of the gas constant
has the units “J/mol-K?”
a.
b.
c.
d.
62.36
8.314
1.987
0.08206
© 2015 Pearson Education, Inc.
Combining the ideal-gas equation
with the density formula
demonstrates that as the molar
mass of a gas ___, the density of
the gas ___.
a.
b.
c.
d.
increases; increases
decreases; increases
increases; decreases
changes; changes in an
unpredictable way.
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Combining the ideal-gas equation
with the density formula
demonstrates that as the molar
mass of a gas ___, the density of
the gas ___.
a.
b.
c.
d.
increases; increases
decreases; increases
increases; decreases
changes; changes in an
unpredictable way.
© 2015 Pearson Education, Inc.
The partial pressure of each
gas in a mixture of gases is
proportional to the _______ of
the gas.
a.
b.
c.
d.
mass
molecular weight
square root of the molecular weight
mole fraction
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The partial pressure of each
gas in a mixture of gases is
proportional to the _______ of
the gas.
a.
b.
c.
d.
mass
molecular weight
square root of the molecular weight
mole fraction
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The kinetic-molecular theory
of gases states that the
average kinetic energy of the
gas particles is proportional to
the _______ of the gas.
a.
b.
c.
d.
Kelvin temperature
Celsius temperature
number of moles
pressure
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The kinetic-molecular theory
of gases states that the
average kinetic energy of the
gas particles is proportional to
the _______ of the gas.
a.
b.
c.
d.
Kelvin temperature
Celsius temperature
number of moles
pressure
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Neon gas undergoes effusion
_______ krypton gas does.
a.
b.
c.
d.
slower than
at the same rate as
twice as fast as
four times as fast as
© 2015 Pearson Education, Inc.
Neon gas undergoes effusion
_______ krypton gas does.
a.
b.
c.
d.
slower than
at the same rate as
twice as fast as
four times as fast as
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Water is decomposed by
electrolysis and the products are
collected separately. If 1 L of H2
is produced, ___ L of O2 will be
produced.
a.
b.
c.
d.
½
1
2
some other amount
© 2015 Pearson Education, Inc.
Water is decomposed by
electrolysis and the products are
collected separately. If 1 L of H2
is produced, ___ L of O2 will be
produced.
a.
b.
c.
d.
½
1
2
some other amount
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The mean free path is
a. the total distance traveled by a
gas molecule.
b. the distance between two gas
molecules.
c. the distance between a gas
molecule and the container wall.
d. the average distance traveled
between molecular collisions.
© 2015 Pearson Education, Inc.
The mean free path is
a. the total distance traveled by a
gas molecule.
b. the distance between two gas
molecules.
c. the distance between a gas
molecule and the container wall.
d. the average distance traveled
between molecular collisions.
© 2015 Pearson Education, Inc.
Which observation illustrates
“average kinetic energy is
proportional to absolute
temperature”?
a. Most gases will liquefy under intense pressure.
b. Tire pressure is greater after a car has traveled
some distance.
c. A spray can feels cold to the touch after use.
d. Gases expand to fill their container.
© 2015 Pearson Education, Inc.
Which observation illustrates
“average kinetic energy is
proportional to absolute
temperature”?
a. Most gases will liquefy under intense pressure.
b. Tire pressure is greater after a car has
traveled some distance.
c. A spray can feels cold to the touch after use.
d. Gases expand to fill their container.
© 2015 Pearson Education, Inc.
A gas is most likely to exhibit
ideal behavior at (X)
temperature and (Y) pressure.
a.
b.
c.
d.
X = low,
X = low,
X = high,
X = high,
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Y = low
Y = high
Y = low
Y = high
A gas is most likely to exhibit
ideal behavior at (X)
temperature and (Y) pressure.
a.
b.
c.
d.
X = low, Y = low
X = low, Y = high
X = high, Y = low
X = high, Y = high
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According to its van der Waals
constants, which gas below
best approximates ideal
behavior?
a.
b.
c.
d.
Ne
Ar
Kr
Xe
© 2015 Pearson Education, Inc.
According to its van der Waals
constants, which gas below
best approximates ideal
behavior?
a.
b.
c.
d.
Ne
Ar
Kr
Xe
© 2015 Pearson Education, Inc.
Which gas below has the
smallest density at STP?
a.
b.
c.
d.
Ar
Kr
Ne
Xe
© 2015 Pearson Education, Inc.
Which gas below has the
smallest density at STP?
a.
b.
c.
d.
Ar
Kr
Ne
Xe
© 2015 Pearson Education, Inc.