Factors Influencing Chemical Reactions Quiz
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Questions and Answers

What is the relationship between a system's entropy and the number of possible microstates?

  • Entropy decreases logarithmically with the number of microstates.
  • Entropy increases linearly with the number of microstates.
  • Entropy remains constant regardless of the number of microstates.
  • Entropy increases logarithmically with the number of microstates. (correct)
  • In which phase do atoms/molecules exhibit greater freedom of motion, resulting in a greater number of microstates?

  • Solid phase
  • Plasma phase
  • Gas phase
  • Liquid phase (correct)
  • Which process is characterized by an increase in entropy?

  • Freezing
  • Sublimation
  • Melting (correct)
  • Condensation
  • How does the entropy of a mixture compare to that of pure substances?

    <p>Entropy of a mixture is greater than that of pure substances.</p> Signup and view all the answers

    According to the Second Law of Thermodynamics, what happens to the entropy of the universe during spontaneous changes?

    <p>It increases.</p> Signup and view all the answers

    How does the temperature of a substance relate to the average kinetic energy of its particles according to the Kinetic-molecular theory?

    <p>Temperature is directly proportional to average kinetic energy.</p> Signup and view all the answers

    Heavier atoms possess greater entropy at a given temperature than lighter ones due to what factor?

    <p>Higher mass leads to more quantized translational energy levels.</p> Signup and view all the answers

    What factor influences the entropy of a system based on the number of molecules present?

    <p>Number of molecules affects possible vibrations leading to entropy.</p> Signup and view all the answers

    What kind of change in entropy occurs during the process of freezing?

    <p>Decrease</p> Signup and view all the answers

    Which phase exhibits atoms/ molecules with relatively fixed positions and modest oscillations:

    <p>Solid phase</p> Signup and view all the answers

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