Evaporation and Boiling Quiz
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Questions and Answers

What is the main difference between evaporation and boiling?

  • Evaporation occurs only at the surface of a liquid, while boiling occurs throughout the liquid (correct)
  • Evaporation involves molecules gaining energy, while boiling does not require energy input
  • Evaporation results in a change of state, while boiling does not change the state of the substance
  • Evaporation happens at all temperatures, while boiling only occurs at one specific temperature

    • What happens to the temperature of a liquid during boiling?

  • The temperature of the liquid decreases continuously
  • The temperature of the liquid fluctuates randomly
  • The temperature of the liquid remains constant until all molecules turn into a gas (correct)
  • The temperature of the liquid increases continuously

    • Which of the following statements about evaporation is true?

  • Evaporation stops when a liquid reaches its boiling point
  • Evaporation is the process of molecules gaining energy to enter the solid state
  • Evaporation can occur at any temperature (correct)
  • Evaporation can only occur at high temperatures

    • What determines the rate of evaporation?

    <p>Both the temperature of the liquid and the air particles colliding with the surface (C)</p> Signup and view all the answers

    What is the boiling point of a substance?

    <p>The temperature at which molecules throughout the liquid can change to the gaseous state (D)</p> Signup and view all the answers

    What determines the occurrence of evaporation in a liquid?

    <p>The energy level of molecules at the liquid's surface (D)</p> Signup and view all the answers

    Why does evaporation occur more rapidly at higher temperatures?

    <p>The energy level of the molecules increases, enabling faster escape (B)</p> Signup and view all the answers

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

    <p>Your hand absorbs heat from the rubbing alcohol, causing faster evaporation (C)</p> Signup and view all the answers

    What is the main difference between evaporation and boiling?

    <p>Evaporation affects molecules throughout the liquid, unlike boiling which is only at the surface (B)</p> Signup and view all the answers

    What happens to the temperature of a liquid during boiling?

    <p>It remains constant until all molecules have turned into a gas (D)</p> Signup and view all the answers

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