Physics: Temperature, Energy, and Vapour Pressure Quiz
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Questions and Answers

At a given temperature, do all particles in a beaker have the same amount of energy?

  • Yes, they all have the same amount of energy.
  • No, they only have different energies during boiling.
  • No, not all particles have the same kinetic energy. (correct)
  • Yes, they have different energies due to evaporation.

    • What is vapor pressure and why must it be measured in a closed container?

  • Pressure generated by a vapor in equilibrium; measured to prevent leaks.
  • Pressure generated by a vapor in equilibrium; measured to avoid interference from outside factors. (correct)
  • Pressure generated by a liquid in equilibrium; measured for safety reasons.
  • Pressure generated by a liquid in equilibrium; measured to prevent contamination.

    • How does evaporation affect the temperature of a liquid?

  • It lowers the temperature by decreasing kinetic energy of remaining molecules. (correct)
  • It increases the temperature due to higher kinetic energy of escaping molecules.
  • It has no effect on temperature.
  • It increases the temperature by releasing heat energy.

    • What is the effect of increasing temperature on the vapor pressure of a liquid?

    <p>Increasing temperature increases vapor pressure by allowing more molecules to escape.</p> Signup and view all the answers

    Why does the boiling point of a liquid vary with atmospheric pressure?

    <p>Greater pressure increases boiling point by requiring more energy.</p> Signup and view all the answers

    What are IMF's and which state of matter has the strongest intermolecular forces?

    <p>'IMF's are intermolecular forces; liquids have the strongest forces.</p> Signup and view all the answers

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