Chapter 11:
Behavior of Gases
Practice Test
1.
__________ law relates pressure and volume, temperature constant.
a.
Dalton's
b.
Gay-Lussac's
c.
Boyle's
d.
Charles's
Hint
2.
____________________ states that equal volumes of gases at the same temperature and pressure contain equal numbers of particles.
a.
Boyle's law
b.
Avogadro's principle
c.
Charles's law
d.
The ideal gas law
Hint
3.
__________ is a model of gas behavior that is valid over a wide range of conditions.
a. The gas hypothesis
b. Volume
c. An ideal gas
d. Pressure
Hint
4.
The air in tires can support a truck or automobile because gases _________________.
a.
have volume
b.
have gravity
c.
exert pressure
d.
have mass
Hint
5.
A soda straw functions as __________________ the liquid up the straw.
a.
reduced pressure draws
b.
sucking draws
c.
air pressure pushes
d.
air pressure pulls
Hint
6.
Volume constant, the pressure of a confined gas is directly proportional to the ______________.
a.
Kelvin temperature
b.
Celsius temperature
c.
size of the container
d.
molecular mass of the gas
Hint
7.
Charles's law states that at constant pressure, the volume of a gas is _____________________ temperature.
a.
inversely proportional to the Celsius
b.
inversely proportional to the Kelvin
c.
directly proportional to the Celsius
d.
directly proportional to the Kelvin
Hint
8.
A sample of of N
2
gas occupies .500 L at 555 mm Hg and 62
o
C. If its volume and temperature change to 0.400 L at 122
o
C, respectively, what is its new pressure?
a.
422 mm Hg
b.
818 mm Hg
c.
1320 mm Hg
d.
0.763 mm Hg
Hint
9.
6.0 L of a gas exerts a pressure of 2.5 atm. When the pressure is increased to 10.0 atm, the gas volume is ____________.
a.
25 L
b.
1.5 L
c.
1.7 L
d.
1.0 L
Hint
10.
A gas exerts a force of 18.0 N over a surface area of 3.00 m
2
. What pressure does the gas exert?
a.
6.00 Pa
b.
56.0 lb/in
2
c.
18.0 Pa
d.
0.167 atm
Hint
11.
In the combined gas law, the _________________ is held constant.
a.
temperature
b.
pressure
c.
volume
d.
number of gas particles
Hint
12.
____________ is the pressure that supports a 760-mm column of mercury.
a.
One pascal
b.
One meter
c.
One lb/in
2
d.
One atmosphere
Hint
13.
Temperature constant, 20.0 L of gas at 844 mm Hg pressure expands to 40.0 L. What is the new pressure?
a.
1.33 atm
b.
16 900 mm Hg
c.
3.75 kPa
d.
422 mm Hg
Hint
14.
The ___________ method is commonly used to convert measurements to other units.
a.
triginometric
b.
multiplication
c.
factor label
d.
division
Hint
15.
A balloon is filled with 10.0 L of oxygen at 27
o
C. If the temperature of the gas in the balloon increases to 127
o
C, the pressure remains constant, and the balloon does not break, what is its new volume?
a.
133 L
b.
6.7 L
c.
13.3 L
d.
47.0 L
Hint
16.
What is the volume of 44.6 L of CO
2
initially at 455 K and 3.66 atm when the conditions change to STP?
a.
97.9 L
b.
22.4 L
c.
682 L
d.
0.557 L
Hint
17.
A _____________ is a device used to measure gas pressure.
a.
anemometer
b.
thermometer
c.
barometer
d.
balance
Hint
18.
976 L of oxygen at STP is compressed into a 12.0-L tank at 273 K. What is the gas pressure in the tank?
a.
2000 mm Hg
b.
81.3 atm
c.
1.00 atm
d.
2.00 atm
Hint
19.
If all three substances are at the same temperature and pressure, 0.120 L of N
2
gas reacts with 0.360 L of H
2
gas to form _________ of NH
3
gas.
a.
0.480 L
b.
0.100 L
c.
22.4 L
d.
0.240 L
Hint
20.
Suppose that a tire pressure gauge reads 32.1 lb/in
2
. If 14.7 lb/in
2
equals 101 300 Pa, what is the pressure in kPa?
a.
1000 kPa
b.
2.18 kPa
c.
221 kPa
d.
.0422 kPa
Hint
