Kinetic Theory of Gases Quiz

Which of the following is an assumption of the kinetic theory of gases?

• Molecules of a gas behave as identical spheres.

• Molecules of a gas have strong intermolecular forces.

• Molecules of a gas are stationary.

• Molecules of a gas have variable mass.

According to the kinetic theory of gases, how do molecules move?

• In continuous random motion

• In a fixed pattern

• In a straight line

• In a circular path

What is negligible according to the kinetic theory of gases?

• The time of a collision compared to the time between collisions

• The mass of the molecules

• The speed of the molecules

• The volume of the container

What is the nature of the collisions between gas molecules according to the kinetic theory?

• Perfectly elastic

• Partially elastic

• Inelastic

• Completely inelastic

What is the movement of gas particles in a container according to the kinetic theory of gases?

• They move in a fixed pattern.

• They move randomly at high speeds.

• They move slowly in a straight line.

• They do not move at all.

What happens to a gas particle when it hits the wall of a container?

• It stops moving.

• It changes color.

• It undergoes a change in momentum.

• It increases in size.

According to Newton's Second Law, (a)   causes the change in momentum of a gas particle.

• The temperature of the gas.
• The force exerted by the wall
• The color of the container.
• The size of the particle.

How is the change in momentum (Δp) of a gas particle expressed mathematically?

• Δp = mv + mv

• Δp = mv - mv

• Δp = -mv - mv = -2mv

• Δp = mv + 2mv

Match the following scenarios with the type of force exerted according to Newton's Third Law.

• A rocket launching off the ground.

• An equal and opposite force.

• A feather falling to the ground.

• A lesser force.

• A book resting on a table.

• A greater force.

• A vacuum in space.

• No force at all.

Diagram showing the change in momentum of a gas particle before and after hitting the wall.

• The momentum increases after hitting the wall.

• The momentum decreases after hitting the wall.

• The momentum remains the same after hitting the wall.

• The momentum reverses direction after hitting the wall.