Kinetic Molecular Theory of Gases
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Questions and Answers

What defines an ideal gas according to the text?

  • An ideal gas has high intermolecular attractions
  • An ideal gas has few intermolecular attractions
  • An ideal gas obeys the gas laws at all pressures and temperatures (correct)
  • An ideal gas is easily compressible

    • According to the kinetic molecular theory of gases, what is the relationship between the kinetic energy of gas molecules and temperature?

  • The kinetic energy decreases as temperature increases
  • The kinetic energy is not affected by temperature
  • The kinetic energy of the molecules is proportional to the absolute temperature (correct)
  • The kinetic energy is inversely proportional to the absolute temperature

    • What characteristic distinguishes an ideal gas from real gases?

  • Real gases are easily compressible
  • Real gases have low kinetic energy
  • Real gases show deviations from ideal behavior (correct)
  • Real gases have no intermolecular attractions

    • What evidence supports the postulate that gas molecules have elastic collisions with themselves and the container?

    <p>A sealed, confined gas exhibits no pressure drop over time</p> Signup and view all the answers

    What phenomenon demonstrates that gas molecules are in constant, random, straight line motion with varying velocities?

    <p>Brownian motion displays molecular motion</p> Signup and view all the answers

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