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Praxis II Physics Content Knowledge Exam Prep

Category - Physics

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Which of the following best describes the microscopic interpretation of the concept of entropy?
  1. The distribution of energy per degree of freedom of a molecule.
  2. The amount of randomness or disorder in a system.
  3. The average time required for a system to reach equilibrium.
  4. The lowest temperature a quantum mechanical system can reach.
Explanation
Correct Response: B. The amount of randomness or disorder in a system is a good definition of entropy. Answer choices A, C, and D do not define entropy.
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