PYQ Vault

Percentage change in volume when the pressure of a gas falls by 20% at constant temperature

The same question, asked 2 times: 16 May 2023 S2, 12 May 2026 S1. Every wording below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    16 May 2023 S2

    29
    Temperature remaining constant, the pressure of gas is decreased by 20%. The percentage change in volume

    Tap an option to check your answer.

  2. Question 2

    12 May 2026 S1

    117
    The pressure of a given mass of a gas is decreased by 20 %20\ \% at constant temperature, then its volume will

    Tap an option to check your answer.