have a significant mass and volume

What is the relationship between volume and number of particles?

More gas particles = more volume

On a hot day, you run the risk of a tire blowout because -

increasing temperature causes more particle collisions

Which statement is true about gas particles?

They each have almost no volume.

According to kinetic molecular theory, how do gas molecules move?

Gas molecules move randomly and in straight lines.

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Kinetic Molecular Theory and Gas Variables

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Questions 21

Answers

1
At absolute zero (0 K),
gases become ideal
molecular velocity increases
all molecular motion stops
collisions become inelastic
2
0.50 moles of any ideal gas at STP will have a volume of -
33.6 L
22.4 L
11.2 L
7.47 L
3
200. kPa is equal to ______ atm.
1.97 atm
1.50 atm
2.50 atm
101 atm
4
Real gases:
conserve kinetic energy during collisions
are at high temperature and low pressure
have a significant mass and volume
have no forces of attraction or repulsion
5
33 degrees C = _____ K
306 K
0 K
273 K
- 240 K
6
What is the relationship between volume and number of particles?
More gas particles = more volume
More gas particles - less volume.
No relationship
7
900. torr = _____ kPa
9.12 x 10^4 kPa
1.18 kPa
6750 kPa
120. kPa
8
What are the conditions of standard temperature and pressure?
0 degrees C and 101.325 atm
273 degrees C and 760 atm pressure
273 degrees C and 1 atm pressure
0 degrees C and 1 atm pressure
9
Most of the volume of an ideal gas -
is very small compared to when it is liquid
is occupied by the molecules
is empty space
10
On a hot day, you run the risk of a tire blowout because -
increasing temperature causes more particle collisions
increased temperature increases the number of particles
increasing temperature also increases the volume of the tire
11
2.00 x 10^23 argon molecules will have a volume of ___ at STP.
3.72 L
7.44 L
11.2 L
22.4 L
12
Convert 800. mmHg to atm.
6.08 x 10^5 atm
1.05 atm
1.00 atm
0.950 atm
13
Which statement is true about gas particles?
They each have almost no volume.
They have strong forces of attraction between them.
They move slowly.
They each have a large mass.
14
If you add more moles of gas to a sealed up, rigid container -
pressure increases
temperature increases
volume increases
15
400. K = _____ degrees C?
673 degrees C
0 degrees C
127 degrees C
273 degrees C
16
As temperature decreases, gas particles will -
move slower and collide more
more faster and collide more
move faster and collide less
move slower and collide less
17
According to kinetic molecular theory, "average kinetic energy" is directly proportional to
Forces of attraction
Temperature
Mass
Speed
18
Two containers each hold 0.50 moles of a gas at STP. What is true about the gases?
They have the same molar mass.
They have the same density.
They have the same mass.
They have the same volume.
19
What is another word for the force exerted by colliding gas particles on the container walls?
Volume
Mass
Pressure
Temperature
20
The collisions between ideal gas particles are -
Elastic (conserve energy)
Inelastic (do not conserve energy)
21
According to kinetic molecular theory, how do gas molecules move?
Gas molecules move randomly and in straight lines.
Gas molecules move randomly and in curved paths.
Gas particles always move in the same paths.

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