Introduction to Kinetic Molecular Theory

Multiple Choice

According to the kinetic-molecular theory, what is an ideal gas?

• A gas that behaves according to all the assumptions of the kinetic-molecular theory

• A gas that is found only in laboratory conditions

• A gas that cannot be compressed

• A gas that exists only at high temperatures

Multiple Choice

What is the primary reason that the volume of gas particles is considered insignificant compared to the volume of the empty space between them?

• Gas particles are mostly empty space themselves.

• Gas particles are in constant motion.

• The kinetic energy of gas particles is very high.

• Gas particles are extremely small.

Multiple Select

What type of motion do gas particles exhibit according to the kinetic molecular theory? (select all that apply.)

• Circular motion

• constantly and randomly

• in an orderly fashion

• in straight line paths

Multiple Choice

What characterizes the collisions between gas particles and between particles and the container walls?

• Inelastic collisions with energy loss

• Elastic collisions with no overall loss of kinetic energy

• Partially elastic collisions with some energy transfer

• Completely inelastic collisions with total energy loss

Drag and Drop

Gas is trapped in a closed container. There exists gas pressure inside the container because gas molecules

Placeholder

Drag these tiles and drop them in the correct blank above

move randomly.

move with equal speed.

collide with one another.

collide constantly with the walls of container.

Multiple Choice

Why are there no forces of attraction or repulsion between gas particles in an ideal gas?

• Because the particles are too small

• Because the particles are in constant motion

• Because the particles do not interact thermally

• Because the particles are considered independent of each other

Multiple Choice

According to the kinetic molecular theory, how does the average kinetic energy of gas particles change with temperature?

• It decreases as temperature increases

• It remains constant regardless of temperature

• It increases as temperature increases

• It is independent of temperature

Reorder

Reorder the following from greatest to least kinetic energy.

1

2

3

4

• 1
• 2
• 3
• 4

Categorize

Options (10)

Particles have volume

Energy gets lost in collisions

Particles don't have volume

Collisions are elestic

Have intermolecular forces

No interactions between particles

High temperature

Low pressure

Low temperature

High Pressure

Organize these options into the right categories

Ideal Gas

Real Gas

Multiple Select

Select the two properties in which a real gas does NOT behave like an ideal gas

• high temperature

• low pressure

• low temperature

• high volume

• high pressure

Multiple Choice

What does the Kinetic Molecular Theory state about particles?

• Particles are static and unchanging.

• Particles move only when heated.

• All particles are always in motion.

• Particles do not exist in gases.

Multiple Choice

What happens to particles in a solid state like ice?

• They are invisible and can be compressed.

• They expand and fill containers.

• They are tightly packed and move minimally.

• They move freely and quickly.

Multiple Choice

How do particles in a liquid differ from those in a solid?

• They are more tightly packed.

• They are usually invisible.

• They move less and slower.

• They have more energy and can move around.

Multiple Choice

What is a characteristic of gas particles?

• They form a regular pattern.

• They can be compressed and expanded.

• They are visible to the eye.

• They hardly move at all.

Multiple Choice

How does temperature affect the energy of particles?

• Higher temperature reduces particle energy.

• Higher temperature increases particle energy.

• Lower temperature increases particle energy.

• Temperature has no effect on particle energy.

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