MDCAT Physics MCQ #3389

For an adiabatic expansion of an ideal gas, what happens to the internal energy?

MDCAT Physics MCQ #3389

  1. Question 1

    Q1. For an adiabatic expansion of an ideal gas, what happens to the internal energy?

    • A) Increases
    • B) Decreases
    • C) Remains constant
    • D) Becomes zero

    Answer: Decreases

    Explanation: In adiabatic expansion, Q = 0, and W is done by the gas, so ΔU = -W, decreasing internal energy. Other options misinterpret adiabatic process.