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WorksheetsGases
Total questions: 24
Worksheet time: 22mins
At a constant temperature, the volume of a container is increased. What happens to the pressure inside of the container ?
increases
decreases
stays the same
If the pressure and the amount of gas are held constant,
as the temperature of an enclosed gas increases, the volume
increases
stays the same
decreases
Which factor can affect gas pressure?
Temperature
Volume
Amount of Gas
All of the answers are correct
What is true of molecules of gas that are exposed to heat in a fixed volume container?
They move faster and they cause the pressure to increase
They move slower and pressure will decrease
The volume increases and pressure increases
The volume decreases and the pressure decreases.
Which of the following describes why the pressure of a gas in a metal tank increases when temperature increases?
As temperature increases, the particles have more space to move and collide less often with the container.
As temperature increases, the particles have less space to move and collide more often with the container.
As temperature increases, the particles slow down and collide less often with the container.
As temperature increases, the particles speed up and collide more often with the container.
A hypothetical gas that perfectly fits all the assumptions of the kinetic molecular theory is a(n)________
ideal gas
combined gas
technical gas
chemical gas
According to the kinetic molecular theory there are strong forces of attraction between gas particles.
True
False
The kinetic molecular theory says that gases consist of large numbers of tiny particles that are very close together.
True
False
According to the kinetic molecular theory collisions between gas particles are perfectly elastic.
True
False
Convert 540 mmHg to kPa.
54,540 kPa
72 kPa
4063 kPa
0.71 kPa
Convert 760 atm to mmHg.
577600 mmHg
1.0 mmHg
76,760 mmHg
7.524 mmHg
What pressure in mmHg is equal to 1.43 kPa?
1.43 mmHg
10.7 mmHg
101.325 mmHg
760 mmHg
Which of the following is not a property of gases?
Gases are compressible
Gases have definite shape and volume
Gases are fluid
Gases exert pressure
Which KMT postulate explains why gases are compressible?
A gas consists of very small particles, each of which has mass
The volume of gas particles is negligible compared to the volume of the total gas
Gas particles are in continuous, random motion
Collisions between gas particles and the walls of the container are perfectly elastic
Which KMT postulate does not explain why gases exert pressure?
There are no attractive or repulsive forces between gas particles
The volume of gas particles is negligible compared to the volume of the total gas
Gas particles are in continuous, random motion
Collisions between gas particles and the walls of the container are perfectly elastic
Gases can diffuse rapidly and easily through each other because...
A gas consists of very small particles, each of which has mass
The volume of gas particles is negligible compared to the volume of the total gas
Gas particles are in continuous, random motion
Collisions between gas particles and the walls of the container are perfectly elastic
Bromine melts at -7.2oC. At what temperature does bromine melt in Kelvin?
244.2 K
265.8 K
-280.3 K
229.8 K
Acetone boils at 329 K. What is this temperature in Celsius?
56 oC
92 oC
602 oC
-56 oC
Gold melts at 1337 K. What is gold's melting point in Celsius?
1064 oC
1610 oC
1574 oC
1100 oC
