MDCAT Chemistry MCQ #4327

Which gas shows anomalous expansion by decreasing in volume when heated at constant pressure below -234°C?

MDCAT Chemistry MCQ #4327

  1. Question 1

    Q1. Which gas shows anomalous expansion by decreasing in volume when heated at constant pressure below -234°C?

    • A) He
    • B) O2
    • C) CO2
    • D) H2

    Answer: H2

    Explanation: H2’s expansion at low temperatures is anomalous. He and O2 follow normal expansion.