engineering physics MCQ #2771

The second law of thermodynamics implies that

engineering physics MCQ #2771

  1. Question 1

    Q1. The second law of thermodynamics implies that

    • A) Heat always flows from a colder body to a hotter body
    • B) The total entropy of an isolated system always increases
    • C) The efficiency of a heat engine can be 100%
    • D) The internal energy of an ideal gas is a function of pressure

    Answer: The total entropy of an isolated system always increases

    Explanation: The second law states that the total entropy of an isolated system always increases or remains constant, never decreases.