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 (C)</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 (A)</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 (C)</p> Signup and view all the answers

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

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

What concept can be applied to particles being continuously moving?

<p>Kinetic Theory of Gases (C)</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> (A)</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> (C)</p> Signup and view all the answers

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