Evaporation vs Boiling
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Questions and Answers

What is the main difference between evaporation and boiling?

  • Boiling is faster than evaporation.
  • Evaporation only occurs at high temperatures, while boiling can occur at any temperature.
  • Evaporation requires more energy than boiling.
  • Evaporation only occurs at the liquid's surface, while boiling happens throughout the liquid. (correct)

    • Why does a drop of rubbing alcohol evaporate faster on your hand than on the table?

  • The rubbing alcohol molecules are slower on the table surface.
  • The temperature of your hand is higher, leading to faster evaporation. (correct)
  • Your hand absorbs the rubbing alcohol molecules.
  • Rubbing alcohol evaporates faster in the air.

    • At what point does a liquid reach its boiling point?

  • When the liquid cools down significantly.
  • When all the molecules at the liquid's surface escape.
  • When the liquid turns to a solid.
  • When molecules throughout the liquid gain enough energy to change to a gas. (correct)

    • Why does evaporation occur more rapidly at higher temperatures?

    <p>Molecules at higher temperatures move faster, increasing the chances of evaporation.</p> Signup and view all the answers

    What happens to a liquid's temperature during boiling?

    <p>It remains constant until all molecules turn into gas.</p> Signup and view all the answers

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