everyday science MCQ #728

When a gas is compressed:

everyday science MCQ #728

  1. Question 1

    Q1. When a gas is compressed:

    • A) Its temperature increases
    • B) Its temperature remains the same
    • C) The internal energy of the gas increases, and thus the kinetic energy and hence absolute temperature increase
    • D) None

    Answer: Its temperature increases

    Explanation: When a gas is compressed, work is done on it, increasing its internal energy and kinetic energy of molecules, which raises the absolute temperature — consistent with the first law of thermodynamics.