Kinetic Molecular Theory and Gas Behavior
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Questions and Answers

What happens to gas molecules when they are compressed in an aerosol can?

  • They decrease in temperature and energy.
  • They form a solid structure.
  • They expand away from each other.
  • They squeeze together, creating a high-pressure zone. (correct)

Which statement best describes the Kinetic Molecular Theory of Gases?

  • Collisions between gas molecules are inelastic.
  • Gas molecules are attracted to each other.
  • Gas molecules move in random, constant, straight-line motion. (correct)
  • Gas molecules only move in curved paths.

What assumption is made about the volume of an ideal gas?

  • It expands infinitely.
  • It varies widely with pressure.
  • It occupies significant space.
  • It is considered to lack volume entirely. (correct)

How does the average kinetic energy of gas molecules relate to temperature?

<p>It is directly proportional to the temperature measured in Kelvin. (B)</p> Signup and view all the answers

What characteristic of real gases differs from the assumptions made by ideal gases?

<p>Real gases have significant intermolecular forces. (C)</p> Signup and view all the answers

What is the significance of considering collisions between gas molecules as elastic?

<p>Total kinetic energy remains constant in collisions. (B)</p> Signup and view all the answers

Which of the following is NOT an assumption of the Kinetic Molecular Theory?

<p>Gas molecules occupy a significant volume. (C)</p> Signup and view all the answers

What occurs when gas is contained in a space?

<p>Gas expands to completely fill the volume of the container. (A)</p> Signup and view all the answers

Which statement is true regarding the spacing of molecules in gases compared to solids?

<p>Gas molecules have more space between them than solid molecules. (A)</p> Signup and view all the answers

What is the primary reason gases can be compressed?

<p>There is significant distance between the gas molecules. (A)</p> Signup and view all the answers

How do gas particles behave when heating a home?

<p>They move rapidly and ensure even heating throughout the space. (B)</p> Signup and view all the answers

What is the effect of gas expansion in a tire when filled with air?

<p>Air expands to fill the tire evenly, maintaining equal pressure. (B)</p> Signup and view all the answers

Which of the following best describes the movement of solid molecules?

<p>They vibrate slowly in place. (D)</p> Signup and view all the answers

What property of gases allows aerosol cans to function effectively?

<p>Compressibility of gas molecules. (A)</p> Signup and view all the answers

What characteristic distinguishes gases from liquids significantly?

<p>Gases can be compressed more easily. (D)</p> Signup and view all the answers

Flashcards

Kinetic Molecular Theory

A set of rules explaining how gas particles behave.

Gas molecule movement

Gas molecules move randomly, constantly, and in straight lines.

Intermolecular forces (gases)

There are no attractive forces between gas molecules.

Gas volume

Most of a gas's volume is empty space.

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Elastic collisions (gases)

Gas molecule collisions don't lose energy.

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Kinetic energy and temperature

Gas molecules' energy increases with temperature (in Kelvin).

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Ideal gas assumptions

Ideal gases have zero volume and no intermolecular forces.

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Gas Expansion

Gases completely fill the container they are in.

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Gas Compressibility

Gases can be compressed because the molecules are spaced far apart.

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Gas Molecules

Gas particles are widely spread out and have significant space between them.

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Solid Structure

Solid molecules are tightly packed and have a fixed shape and volume.

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Liquid Structure

Liquid molecules are moderately spaced and have more movement than solids.

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Tire Inflation

Air molecules in a tire spread out to fill the entire space.

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Home Heating

Gas diffusion is essential for even heating distribution throughout a house.

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Aerosol Action

Aerosol cans utilize gas compressibility for controlled release.

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