Gases — Quiz Answers

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If both gases are at the same temperature, which one has the greater pressure?

A
gas 1 because the particles are moving much faster
B
gas 2 because the particles have more space between them
C
gas 1 because it has fewer particles that are close together
D
gas 2 because it has more particles that are colliding
3

Which statement about gases is true?

A
They are made up of particles that travel in a curved path when in motion.
B
They are made up of particles that always move very slowly.
C
They are made up of hard spheres that are in random motion.
D
They are made up of hard spheres that vibrate quickly in stationary positions.
4

According to the kinetic-molecular theory, the collision between two ideal gas particles is a result of

A
attraction between the two particles.
B
neither attraction nor repulsion.
C
repulsion from the wall of the container.
D
repulsion from other gas particles.
5

A substance is made up of slow-moving particles that have very little space between them. Based on this information, what can most likely be concluded about this substance?

A
It is a gas because its particles move continuously in a straight line.
B
It is not a gas because its particles do not have large spaces between them.
C
It is a gas because its particles move in many different directions.
D
It is not a gas because its particles do not move continuously.
6

The closeness of particles of gas and their low speeds allow intermolecular forces to become important at certain pressures and temperatures. Which best describes this statement?

A
This is a postulate of the kinetic-molecular theory.
B
This describes ideal gas behavior without the kinetic-molecular theory.
C
This is a limitation of the kinetic-molecular theory.
D
This describes ideal gas behavior using the kinetic-molecular theory.
7

Which statement describes a limitation of the kinetic-molecular theory for a gas?

A
The theory assumes that particles are in random and continuous motion.
B
The theory states that pressure increases with temperature.
C
The theory assumes that particles do not experience intermolecular forces.
D
The theory states that pressure is inversely proportional to volume.
8

According to the kinetic-molecular theory, the collision between two ideal gas particles is a result of

A
neither attraction nor repulsion.
B
attraction between the two particles.
C
repulsion from other gas particles.
D
repulsion from the wall of the container.
9

Which statement about gases is true?

A
They are made up of particles that always move very slowly.
B
They are made up of hard spheres that are in random motion.
C
They are made up of hard spheres that vibrate quickly in stationary positions.
D
They are made up of particles that travel in a curved path when in motion.
10

Which is an example of the kinetic-molecular theory not holding true for a gas?

A
The particles in a gas travel in straight lines in a continuous, random motion.
B
The average kinetic energy of particles depends only on the temperature.
C
The attraction between particles causes a gas to condense at low temperatures.
D
The particles in a gas make up a small portion of the total volume of the gas.

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