engineering chemistry MCQ #3431

The critical temperature of a gas is the temperature above which it cannot be liquefied, no matter how high the pressure. This is because:

engineering chemistry MCQ #3431

  1. Question 1

    Q1. The critical temperature of a gas is the temperature above which it cannot be liquefied, no matter how high the pressure. This is because:

    • A) the molecules are moving too fast
    • B) the intermolecular forces are too weak
    • C) the gas is ideal
    • D) the pressure is too low

    Answer: the molecules are moving too fast

    Explanation: Above the critical temperature, the kinetic energy of the molecules overcomes the intermolecular forces, preventing liquefaction.