Understanding Gas Properties (KMT

What best describes the composition of gases?

• Gases are made of large molecules closely packed together.

• Gases consist of tiny molecules in mostly empty space.

• Gases have molecules that are fixed in position.

• Gases have molecules that are strongly attracted to each other.

How do gas molecules interact with each other?

• They attract and stick together.

• They repel each other and never collide.

• They are neither attracted nor repelled by other gas molecules.

• They form bonds with nearby gas molecules.

Which statement correctly describes the motion of gas molecules?

• They move in slow, circular motions.

• They move in a straight line at constant, rapid, and random motion.

• They remain at rest unless disturbed.

• They always move toward the center of the container.

What happens when gas molecules collide with each other?

• They slow down and lose energy.

• They stick together and form clusters.

• They collide elastically, meaning no energy is lost.

• They break apart into smaller molecules.

What causes gas molecules to move?

• The number of molecules in the container

• Their kinetic energy and Kelvin temperature

• The attraction between gas molecules

• The size of the gas container

What is the relationship between temperature and kinetic energy in gases?

• As temperature increases, kinetic energy decreases.

• As temperature increases, kinetic energy increases.

• Temperature has no effect on kinetic energy.

• Kinetic energy only changes when pressure is applied.

What happens when gas molecules collide with the walls of their container?

• They cause a decrease in pressure.

• They create pressure by exerting force on the walls.

• They stop moving and lose energy.

• They change into a liquid state.

If the temperature of a gas increases, what will happen to the speed of its molecules?

• The molecules will move faster.

• The molecules will move slower.

• The molecules will stop moving.

• The speed will remain the same.

Which of the following is NOT a property of gas molecules?

• They move in straight-line motion.

• They are strongly attracted to each other.

• They collide elastically.

• They move rapidly and randomly.

What is the primary factor that determines the speed of gas molecules?

• The pressure of the gas

• The volume of the container

• The temperature in Kelvin

• The type of gas molecule