MDCAT Chemistry MCQ #4323

Which gas shows the smallest change in volume when cooled from 100°C to 0°C under constant pressure?

MDCAT Chemistry MCQ #4323

  1. Question 1

    Q1. Which gas shows the smallest change in volume when cooled from 100°C to 0°C under constant pressure?

    • A) He
    • B) O2
    • C) CO2
    • D) NH3

    Answer: CO2

    Explanation: CO2’s intermolecular attractions reduce volume contraction. He follows Charles’s law closely.