Kinetic Energy and Compressed Gases Quiz
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Questions and Answers

What happens to the kinetic energy of particles as the temperature rises?

  • It decreases
  • It varies randomly
  • It increases (correct)
  • It remains constant

    • Why is compressed natural gas (CNG) used as fuel in vehicles?

  • Because large volumes of CNG can be compressed into a small cylinder for easy transport (correct)
  • Because it has a slow rate of diffusion compared to other gases
  • Because it is easier to transport due to its low compressibility
  • Because it is less compressible than other gases

    • How do we perceive the smell of hot cooked food from a kitchen located far away?

  • The smell particles move at a variable speed
  • The smell particles move at a slow pace
  • The smell particles remain confined to the kitchen area
  • The smell particles mix with air particles and diffuse rapidly to reach us (correct)

    • Why do gases show the property of diffusing very fast into other gases?

    <p>Due to the large space between gas particles</p> Signup and view all the answers

    What is the minimum temperature at which a solid melts to become a liquid at the atmospheric pressure called?

    <p>Melting point</p> Signup and view all the answers

    Why does the temperature of a solid remain the same during the process of melting?

    <p>The heat energy gets hidden into the contents of the beaker and is known as latent heat</p> Signup and view all the answers

    What is the term used to describe the process of a liquid changing into a gas at a certain temperature?

    <p>Vaporization</p> Signup and view all the answers

    What is the minimum temperature at which a liquid starts boiling at atmospheric pressure called?

    <p>Boiling point</p> Signup and view all the answers

    Particles in water at 00 C (273 K) have more energy compared to particles in ice at the same temperature. What provides these particles with more energy?

    <p>The increased kinetic energy due to higher temperature</p> Signup and view all the answers

    What term is used to describe the amount of heat energy required to change 1 kg of a solid into liquid at atmospheric pressure at its melting point?

    <p>Latent heat of fusion</p> Signup and view all the answers

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