PYQ Vault

Pressure from the kinetic energy per unit volume (P = 2E/3V)

This type of question, asked 6 times: May 2021 S1, 11 May 2023 S2, 16 May 2023 S1, 9 May 2024 S2, 13 Apr 2026 S2, 19 Apr 2026 S2. All 6 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    May 2021 S1

    7
    Assuming the expression for the pressure exerted by the gas, it can be shown that pressure is

    Tap an option to check your answer.

  2. Question 2

    11 May 2023 S2

    5
    What is the pressure of hydrogen in a cylinder of volume 10 litre if its total energy of translation is 7.5×1037.5\times10^3 J?

    Tap an option to check your answer.

  3. Question 3

    16 May 2023 S1

    12
    Assuming the expression for the pressure exerted by the gas, it can be shown that pressure is

    Tap an option to check your answer.

  4. Question 4

    9 May 2024 S2

    41
    An ideal gas in a container of volume 500 cc is at a pressure of 2×1052 \times 10^5 N/m2^2. The average kinetic energy of each molecule is 6×10−216 \times 10^{-21} J. The number of gas molecules in the container is

    Tap an option to check your answer.

  5. Question 5

    13 Apr 2026 S2

    116
    Energy of a gas/litre is 600600 joule, then what will be its pressure?

    Tap an option to check your answer.

  6. Question 6

    19 Apr 2026 S2

    116
    Assuming the expression for the pressure exerted by the gas, it can be shown that pressure is

    Tap an option to check your answer.