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Worksheets12.1 Gases
Total questions: 15
Worksheet time: 28mins
Name
Class
Date
1.
What pressure does a 4000 N (408 Kg or 900 pound) horse exert on the ground if each foot is 10 cm2?
a)
40 N/cm2
b)
100 N/cm2
c)
400 N/cm2
d)
10 N/cm2
2.
Which of the following statements is true?
a)
particles of a gas never collide
b)
particles of a gas collide with their container only.
c)
particles of a gas collide with each other in elastic collisions.
d)
particles of a gas collide with each other in inelastic collisions.
3.
Which is NOT a value equal to 1 atm of pressure?
a)
760 torr
b)
1 psi
c)
101.3 kPa
d)
760 mmHg
4.
Which is an example of gas diffusion?
a)
inflating a flat tire
b)
the odor of perfume spreading throughout a room
c)
a cylinder of oxygen stored under high pressure
d)
All of the above
5.
By which property of gases explains why they take the shape of their container?
a)
evaporation
b)
expansion
c)
adhesion
d)
effusion
6.
Explain what would happen to the column of mercury in the barometer as shown if the atmospheric pressure fell.
a)
As the pressure falls, the column of mercury will drop lower.
b)
As the pressure falls, the column of mercury will remain unchanged.
c)
As the pressure falls, the column of mercury will rise higher.
d)
As the pressure falls, the density of the mercury will increase.
7.
How can we increase the gas pressure inside a sealed container?
a)
Increase the number of particles inside the container
b)
Increase the temperature
c)
Decrease the volume of the container
d)
All of these
8.
Which substance has the lowest density?
a)
H2O(g)
b)
H2O(l)
c)
Hg(l)
d)
Al(s)
9.
The theory that describes the behavior of gases in terms of the motion of gas particles is _____________.
a)
the theory of intermolecular forces
b)
Graham's law of effusion
c)
Dalton's law of partial pressures
d)
the kinetic-molecular theory
10.
Compared to a man standing on a tall mountain, a man standing at sea level
a)
has less atmospheric pressure on him
b)
has more atmospheric pressure on him
c)
weighs less
d)
has more mass
11.
At standard pressure, what is the partial pressure of oxygen, in a mixture of oxygen, nitrogen (81.5kPa), and argon (0.5kPa)?
a)
19.3kPa
b)
82kPa
c)
1.26kPa
d)
61.7kPa
12.
How much faster will Neon gas effuse than chlorine gas if they have the same temperature?
a)
1.87x
b)
1.33x
c)
0.03x
d)
0.533x
13.
In an open Manometer filled with ammonia the level of the mercury is 180.0 mm higher in the arm connected air. The air pressure is 97.2 kPa. What is the pressure in kPa of the ammonia gas.
a)
73.4 kPa
b)
23.8 kPa
c)
121 kPa
d)
277 kPa
14.
Which of the following is the general definition of a gas?
a)
Matter with a fixed volume and a fixed shape.
b)
Matter with a fixed volume but no fixed shape.
c)
Matter with no fixed volume and no fixed shape.
d)
Matter with a fixed shape but no fixed volume.
15.
A device that is used to measure atmospheric pressure is a ___________.
a)
barometer
b)
thermometer
c)
kilometer
d)
micrometer
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