Form 13: Phase Changes and Energy Exercise

Form 13: Phase Changes and Energy

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Form 13: Phase Changes and Energy

In this engaging exercise, students will explore the intricate relationship between phase changes and energy transfer by conducting experiments to observe how temperature affects the states of matter, while reinforcing concepts of latent heat and thermodynamics through hands-on activities.

Questions

  1. MultiChoice

    Is freezing liquid water into solid ice an exothermic or endothermic process?

  2. MultiChoice

    Is melting solid ice into liquid water endothermic or exothermic?

  3. MultiChoice

    Is boiling liquid water to create steam endothermic or exothermic?

  4. MultiChoice

    Is condensing steam into liquid water exothermic or endothermic?

  5. MultiChoice

    Sublimation (dry ice turning directly from solid to gas) absorbs heat. It is:

  6. MultiChoice

    Deposition (water vapor turning directly to ice) releases heat. It is:

  7. MultiChoice

    Are phase changes (such as melting, boiling, freezing) physical or chemical changes?

  8. MultiChoice

    Why does freezing liquid water release energy into the surroundings?

  9. MultiChoice

    Why does boiling water require continuous input of thermal energy?

  10. MultiChoice

    Condensation of water vapor on a cold glass surface gives off heat. Is condensation exothermic?

  11. MultiChoice

    Melting chocolate in your mouth absorbs thermal energy from your tongue. Melting is:

  12. MultiChoice

    Frost forming on a cold window pane releases heat into the air. Frost formation is: