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Latent heat of fusion and vaporization

Quiz by Cyrus Flores,

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16 questions
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  • Q1
    What is the latent heat of fusion?
    The amount of heat required to change a substance from solid to liquid without any change in temperature.
    The amount of heat required to change a substance from solid to gas without any change in temperature.
    The amount of heat required to change a substance from liquid to gas without any change in temperature.
    The amount of heat required to change a substance from gas to liquid without any change in temperature.
    30s
  • Q2
    What is the latent heat of vaporization?
    The amount of heat required to change a substance from solid to liquid without any change in temperature.
    The amount of heat required to change a substance from gas to liquid without any change in temperature.
    The amount of heat required to change a substance from solid to gas without any change in temperature.
    The amount of heat required to change a substance from liquid to gas without any change in temperature.
    30s
  • Q3
    What happens to the temperature during a phase change?
    The temperature increases during a phase change.
    The temperature fluctuates during a phase change.
    The temperature remains constant during a phase change.
    The temperature decreases during a phase change.
    30s
  • Q4
    What is the definition of specific heat?
    The amount of energy required to evaporate a substance.
    The amount of energy required to melt a substance.
    The amount of energy required to freeze a substance.
    The amount of heat energy required to raise the temperature of a certain amount of substance by one degree Celsius.
    30s
  • Q5
    Which of the following substances has the highest specific heat?
    Iron
    Copper
    Water
    Aluminum
    30s
  • Q6
    What is the formula for calculating specific heat?
    Q = mcΔH
    Q = mlv
    P = mgh
    Q = mcΔT
    30s
  • Q7
    Which unit is typically used to measure specific heat?
    m/s
    kg/L
    A/m²
    J/g°C
    30s
  • Q8
    Which factor does not affect the specific heat of a substance?
    Pressure
    Temperature
    Type of substance
    Mass
    30s
  • Q9
    Which statement best describes the specific heat of metals?
    Metals generally have low specific heat.
    Metals always have a specific heat of 1.0 J/g°C.
    Metals have the same specific heat as liquids.
    Metals generally have high specific heat.
    30s
  • Q10
    Which statement about specific heat is true?
    Specific heat is directly proportional to the mass of a substance.
    Specific heat remains constant for all substances.
    Specific heat is measured in degrees Celsius.
    Different substances have different specific heat values.
    30s
  • Q11
    Which of the following substances has the highest heat of fusion?
    Water
    Aluminum
    Copper
    Iron
    30s
  • Q12
    What is the heat of fusion of ice?
    500 joules per gram
    200 joules per gram
    1000 joules per gram
    334 joules per gram
    30s
  • Q13
    What is the heat of fusion of lead?
    12.8 kilojoules per mole
    37.2 kilojoules per mole
    56.9 kilojoules per mole
    24.5 kilojoules per mole
    30s
  • Q14
    Which substance has the highest heat of vaporization?
    Water
    Methane
    Alcohol
    Carbon dioxide
    30s
  • Q15
    Which phase change requires the most heat energy?
    Freezing
    Vaporization
    Melting
    Condensation
    30s

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