engineering physics MCQ #2791

A gas is compressed isothermally. The work done on the gas is 200 J. The change in internal energy is

engineering physics MCQ #2791

  1. Question 1

    Q1. A gas is compressed isothermally. The work done on the gas is 200 J. The change in internal energy is

    • A) 200 J
    • B) 0 J
    • C) -200 J
    • D) 100 J

    Answer: 0 J

    Explanation: In an isothermal process, the internal energy of an ideal gas remains constant, so ΔU = 0.