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Thermodynamics

Quiz by Kari Stone

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11 questions
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  • Q1
    Which of the following is an example of an exothermic process?
    Burning wood
    Dissolving ammonium sulfate in water
    Subliming dry ice
    Melting ice
    Boiling water
    30s
  • Q2
    Which of the following statements describes the second law of thermodynamics?
    The pressure and volume of a gas are inversely proportional.
    The heat capacity of a substance is directly proportional to its mass.
    The entropy of an isolated system increases over time.
    The total energy of a system remains constant.
    Energy cannot be created or destroyed, only transformed.
    30s
  • Q3
    Which of the following statements describes the first law of thermodynamics?
    The rate of a chemical reaction is determined by the activation energy.
    The heat capacity of a substance is directly proportional to its mass.
    Energy cannot be created or destroyed, only transformed.
    The entropy of an isolated system increases over time.
    The pressure and volume of a gas are inversely proportional.
    30s
  • Q4
    Which of the following factors affect the rate of reaction?
    Pressure and volume
    Temperature, concentration, and catalysts
    pH and solubility
    Mass and density
    Enthalpy and entropy
    30s
  • Q5
    Which of the following is an example of a spontaneous process?
    A reaction with a positive change in enthalpy at constant temperature
    Water freezing at 0 degrees Celsius
    A gas expanding into a vacuum
    Entropy decreasing in a closed system
    30s
  • Q6
    Which of the following is a reversible process in thermodynamics?
    Combustion of gasoline
    Freezing of water
    Dissolution of a solute in water
    Isothermal expansion of an ideal gas
    30s
  • Q7
    Which of the following is a measure of the disorder or randomness of a system?
    Enthalpy
    Entropy
    Gibbs free energy
    Heat capacity
    30s
  • Q8
    Which of the following best describes enthalpy?
    The ability of a substance to conduct electricity
    The number of protons in an atom
    The heat released or absorbed in a chemical reaction at constant pressure
    The measure of disorder in a system
    30s
  • Q9
    Which of the following is a state function in thermodynamics?
    Work
    Temperature
    Enthalpy
    Heat
    30s
  • Q10
    Which of the following is an example of an endothermic process?
    Condensing water vapor
    Melting ice
    Freezing water
    Burning wood
    30s
  • Q11
    Which of the following is the correct definition of specific heat?
    The ability of a substance to conduct electricity
    The total amount of heat absorbed or released in a chemical reaction
    The amount of heat required to raise the temperature of a unit mass of a substance by one degree Celsius
    The measure of disorder in a system
    30s

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