Kinetic Molecular Theory Quiz

Which of the following statements best describes the kinetic molecular theory of gases?

• Gases consist of large particles that are far apart from each other and do not move.

• Gases consist of small particles that are close together and move at high speeds.

• Gases consist of small particles that are far apart from each other and move at high speeds.

• Gases consist of large particles that are close together and do not move.

Tags

NGSS.MS-PS1-4

If the temperature of a gas increases, what happens to the kinetic energy of its particles?

• It decreases.

• It remains the same.

• It increases.

• It first increases, then decreases.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is effusion in the context of gases?

• The process by which gas particles spread through a mixture

• The process by which gas particles pass through a tiny opening

• The process by which gas particles condense into a liquid

• The process by which gas particles exert pressure on the walls of their container

Tags

NGSS.MS-PS3-1

What happens to the pressure of a gas if the volume is halved while the temperature remains constant? Halved means reduced to 1/2 of its original volume.

• The pressure is halved.

• The pressure remains the same.

• The pressure doubles.

• The pressure quadruples.

Which of the following is NOT a postulate of the kinetic molecular theory?

• Gas particles are in constant, random motion.

• Almost all volume of a gas is empty space.

• Gas particles exert no forces on each other (neither attraction nor repulsion).

• Gas particles lose energy when they collide with each other.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS3-5

Which of the following best describes the pressure exerted by a gas?

• The force the gas exerts on the walls of its container per unit area.

• The volume of the gas particles divided by the total volume of the gas.

• The temperature of the gas in Kelvin.

• The number of gas particles in a given volume.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

What is the main difference between diffusion and effusion?

• Diffusion involves gas particles moving through a tiny opening, while effusion involves spreading in a mixture.

• Effusion involves gas particles moving through a tiny opening, while diffusion involves spreading in a mixture.

• Diffusion can only occur in liquids, while effusion can occur in gases.

• Effusion can only occur in liquids, while diffusion can occur in gases.

Which of the following statements is true about the kinetic molecular theory?

• It applies only to solids and liquids, not gases.

• It assumes that gas particles are stationary.

• It explains the behavior of gases in terms of particles in motion.

• It states that gas particles attract each other strongly.

If you decrease the volume of a container, the pressure within the contain will also decrease.

• True

• False

Gas pressure is caused by

• Gas molecules heating up

• Gas molecules reacting with other gas molecules

• Gas molecules hitting the walls of a container

• Gas molecules hitting other gas molecules