Delve into the Science of Diffusion
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Delve into the Science of Diffusion

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Questions and Answers

Which of the following best describes diffusion?

  • The detection of smell by the nose
  • The mixing of particles due to their random movement (correct)
  • The process of evaporating food particles
  • The movement of food particles in the air

    • What factors affect the speed of mixing by diffusion?

  • The type of substance being diffused
  • Temperature, size, and mass of the particles (correct)
  • The amount of energy in the particles
  • The distance between the particles

    • Why do particles from warm food diffuse more quickly than those from cool food?

  • Warm food particles have more energy and move faster (correct)
  • Cool food particles have more mass
  • Cool food particles evaporate faster
  • Warm food particles are lighter

    • What is the role of cotton wool soaked in concentrated hydro in the experiment?

    <p>To provide a medium for diffusion to occur</p> Signup and view all the answers

    Do you need to move or stir to make diffusion happen?

    <p>No, diffusion happens due to the random movement of particles</p> Signup and view all the answers

    Diffusion is the random movement and mixing of particles in a substance.

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

    Food particles evaporate during cooking and spread out in the air.

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

    The speed of diffusion depends on the size and mass of the particles.

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

    Particles from warm food diffuse slower than those from cool food.

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

    Diffusion can only occur if you move or stir the substances.

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

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