Question 1

If the volume of a container is kept constant, what is the qualitative effect on gas particles when the pressure increases?

Accepted Answer

The particles gain kinetic energy and strike the walls of the container with greater force and frequency.

Answer

The particles increase in size and occupy more space, leading to a crowded environment without more speed.

Answer

The individual particles stop moving and exert a constant static force against the surfaces of the container.

Answer

The particles lose kinetic energy and strike the walls of the container with less force and frequency.

Question 2

Which statement correctly describes the relationship between the temperature of a gas and the motion of its particles?

Accepted Answer

As the temperature increases, the particles move faster and their average kinetic energy increases.

Answer

As the temperature increases, the particles vibrate in fixed positions and do not move faster.

Answer

As the temperature increases, the particles move faster but their average kinetic energy stays the same.

Answer

As the temperature increases, the particles move slower and their average kinetic energy decreases.

Question 3

What happens to the pressure of a gas inside a rigid container if the particles start moving faster due to heating?

Accepted Answer

The pressure increases because the particles hit the walls more frequently and with greater force.

Answer

The pressure increases because the gas particles expand and take up more volume within the rigid container.

Answer

The pressure decreases because the faster-moving particles spend less time near the container walls.

Answer

The pressure stays the same because the physical size of the gas particles does not change when heated.

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