MDCAT Physics MCQ #3373

The change in internal energy of a system is given by

MDCAT Physics MCQ #3373

  1. Question 1

    Q1. The change in internal energy of a system is given by

    • A) ΔU = Q + W
    • B) ΔU = Q - W
    • C) ΔU = W - Q
    • D) ΔU = Q * W

    Answer: ΔU = Q + W

    Explanation: First law of thermodynamics states ΔU = Q + W, where W is work done on the system. Other options are incorrect sign conventions.