Changes of State and Phenomena Quiz
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Questions and Answers

What phenomenon is illustrated in Fig. 1.1 when salt is dissolved in water?

  • Deposition of sugar
  • Evaporation of water
  • Sublimation of salt (correct)
  • Liquefaction of gases
  • In the activity involving potassium permanganate crystals, what does diluting the solution multiple times help demonstrate?

  • Effect of pressure on states of matter
  • Sublimation of water
  • Deposition of crystals
  • Continuous movement of particles (correct)
  • When solid carbon dioxide is exposed to room temperature, what change in state does it undergo?

  • Condensation
  • Melting
  • Sublimation (correct)
  • Solidification
  • What is the main concept being tested by the activity involving an unlit incense stick in a corner of the class?

    <p>Diffusion of particles</p> Signup and view all the answers

    How can one determine whether water is still colored after diluting the potassium permanganate solution multiple times?

    <p>By looking for any remaining color</p> Signup and view all the answers

    What aspect of matter do we need to consider to answer questions about the disappearance of salt when dissolved in water?

    <p>Movement of particles</p> Signup and view all the answers

    When sugar is dissolved in water, what happens to the sugar particles?

    <p>They spread throughout water</p> Signup and view all the answers

    What concept can be applied to particles being continuously moving?

    <p>Kinetic Theory of Gases</p> Signup and view all the answers

    'Particles of matter are continuously moving' implies that matter is made up of __________.

    <p><strong>Invisible particles</strong></p> Signup and view all the answers

    What principle is being exemplified when dissolving potassium permanganate in water and diluting it multiple times?

    <p><strong>Diffusion</strong></p> Signup and view all the answers

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