Temperature Changes in Phase Transitions
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Questions and Answers

What happens to the temperature of ice as it continues to absorb energy during melting?

  • It decreases until it reaches the freezing point.
  • It rapidly increases until it starts boiling.
  • It remains constant as the ice melts. (correct)
  • It fluctuates between freezing and melting points.

    • Why does crushed ice melt faster than cubed ice?

  • Crushed ice absorbs more heat due to its smaller mass.
  • Crushed ice is made of smaller water molecules.
  • Crushed ice retains heat longer than cubed ice.
  • Crushed ice has a larger surface area for energy absorption. (correct)

    • What best describes the temperature of water when it reaches the boiling point?

  • It decreases gradually as steam forms.
  • It continues to increase until all water is evaporated.
  • It fluctuates back and forth between boiling and freezing points.
  • It remains constant as energy is absorbed for boiling. (correct)

    • During the phase change from ice to water, what is occurring to the ice at the melting point?

    <p>The temperature remains unchanged while energy is absorbed.</p> Signup and view all the answers

    At what stage does the temperature of ice remain constant, despite energy absorption?

    <p>During the transition from ice to water.</p> Signup and view all the answers

    What is the effect of increasing surface area on the melting rate of ice?

    <p>It speeds up the melting process by enhancing energy absorption.</p> Signup and view all the answers

    When water is at its boiling point, what happens to the temperature of the water?

    <p>The temperature remains constant.</p> Signup and view all the answers

    Which statement correctly describes the temperature change of ice during the initial stages of heating?

    <p>The temperature rises and then plateaus at 0°C.</p> Signup and view all the answers

    What occurs to water molecules as they transition from liquid to gas during boiling?

    <p>Water molecules gain enough energy to escape into the atmosphere.</p> Signup and view all the answers

    Study Notes

    Temperature Changes During Phase Transitions

    • A graph of temperature against time for ice or water shows specific patterns
    • The temperature of ice initially rises
    • During melting, the temperature remains constant while ice changes to water
    • The temperature of water then rises
    • During boiling, the temperature remains constant while water changes to steam
    • Crushed ice melts faster than cubed ice because of increased surface area for absorbing energy from the surroundings.

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    Description

    This quiz explores the patterns of temperature changes during phase transitions, such as melting and boiling. It examines the behavior of ice and water as they change states and explains how factors like surface area affect melting rates. Test your understanding of these crucial concepts in thermodynamics!

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