Evaporation Experiment: Surface Area and Surroundings
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Questions and Answers

When water vapor condenses, the surrounding air becomes:

  • cooler due to the loss of kinetic energy in the vapor
  • warmer due to the release of latent heat (correct)
  • hotter, as the condensation process is endothermic
  • unaffected, as the temperature remains constant during condensation

    • The amount of energy released when 1 gram of water vapor at 100°C condenses to liquid water at 100°C is:

  • 540 calories (correct)
  • 80 calories
  • 720 calories
  • 100 calories

    • The specific heat capacity of water is higher than that of most other substances because:

  • water has a high heat of vaporization
  • water has a high boiling point
  • water molecules form hydrogen bonds (correct)
  • water has a high density

    • The role of oceans in temperature regulation is primarily due to:

    <p>the high specific heat capacity of water</p> Signup and view all the answers

    The rate of evaporation from the ocean's surface is primarily influenced by:

    <p>all of the above</p> Signup and view all the answers

    The amount of energy absorbed or released when 1 gram of water at 0°C freezes to ice at 0°C is:

    <p>80 calories</p> Signup and view all the answers

    If 1 kg of water at 20°C is mixed with 1 kg of water at 40°C, what will be the final temperature of the mixture?

    <p>30°C</p> Signup and view all the answers

    Why does the evaporation of water from a dog's tongue help to cool its body?

    <p>The evaporation process absorbs heat energy from the dog's body, causing cooling.</p> Signup and view all the answers

    Which of the following statements about the specific heat capacity of water is correct?

    <p>Water has a high specific heat capacity, which means it can absorb a large amount of heat energy with a small temperature change.</p> Signup and view all the answers

    What role do oceans play in regulating the Earth's temperature?

    <p>Oceans absorb and release heat energy, helping to moderate temperature changes on land.</p> Signup and view all the answers

    How does heat transfer occur in the ocean?

    <p>All of the above mechanisms (conduction, convection, and radiation) play significant roles.</p> Signup and view all the answers

    What is the primary reason for the formation of dew on the surface of a cold soft drink bottle?

    <p>The cold temperature of the bottle causes water vapor in the air to condense.</p> Signup and view all the answers

    Which of the following factors does NOT affect the rate of evaporation?

    <p>Pressure exerted by the liquid itself</p> Signup and view all the answers

    Why does the ocean water help moderate the surrounding temperature near the equator?

    <p>The high specific heat capacity of water allows it to absorb large amounts of heat without a significant rise in temperature.</p> Signup and view all the answers

    What is the primary mechanism by which the oceans help stabilize temperatures on Earth during winter and summer seasons?

    <p>The oceans transport heat from the equator to the polar regions through ocean currents.</p> Signup and view all the answers

    If the atmospheric vapor pressure increases, what effect will it have on the rate of evaporation?

    <p>The rate of evaporation will decrease.</p> Signup and view all the answers

    Which of the following statements about the specific heat capacity of water is correct?

    <p>Water has a high specific heat capacity, which means it requires a large amount of energy to change its temperature.</p> Signup and view all the answers

    What role do ocean currents play in stabilizing atmospheric temperatures during winter and summer seasons?

    <p>Ocean currents transport heat from the equator to the polar regions, moderating temperatures in those areas.</p> Signup and view all the answers

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