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Comparing partial pressures of gases from their masses (pressure follows the number of moles)

This type of question, asked 9 times: 2 May 2023 S1, 12 May 2024 S2, 19 Apr 2025 S1, 23 Apr 2025 S1, 25 Apr 2025 S2, 26 Apr 2025 S1, 26 Apr 2025 S2, 18 Apr 2026 S1, 18 Apr 2026 S2. All 9 questions below, oldest first.

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  1. Question 1

    2 May 2023 S1

    65
    Which from following gases of same mass exerts highest pressure at constant temperature?

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  2. Question 2

    12 May 2024 S2

    86
    Equal masses of H2(g)H_2(g) and He(g)He(g) are enclosed in a container at constant temperature. The ratio of partial pressure of H2H_2 to He is

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  3. Question 3

    19 Apr 2025 S1

    90
    Four vessels of same volume consist equal masses of four gases H2,Cl2, N2H_{2},Cl_{2},{\text{ }N}_{2}, and O2O_{2} separately at same temperature. The pressure exerted by the gas is maximum for

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  4. Question 4

    23 Apr 2025 S1

    81
    A container contains equal masses of H2,HeH_{2},He, CO2CO_{2} and Ne at a certain temperature. Which of the following gas exerts maximum partial pressure?

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  5. Question 5

    25 Apr 2025 S2

    61
    A container contains 4 gH2,4 gHe4\text{ }gH_{2},4\text{ }gHe and certain amount of ' Ne ' at a certain temperature. What is the mass of 'Ne' required so that the partial pressure exerted by 'Ne' is equal to the partial pressure of He ?

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  6. Question 6

    26 Apr 2025 S1

    63
    Equal masses of helium and oxygen are mixed in an empty container at 25∘C25^{\circ}C. What is the fraction of the total pressure exerted by helium?

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  7. Question 7

    26 Apr 2025 S2

    64
    A container consists mixture of four gases as 5 gH2,8 gHe,50 gCO25\text{ }gH_{2},8\text{ }gHe,50\text{ }gCO_{2} and 20 g Ne at a certain temperature. Which of the following gases exerts minimum partial pressure?

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  8. Question 8

    18 Apr 2026 S1

    6
    What ratio by mass of 'Ne' and CH4\mathrm{CH_4} should be mixed so that partial pressure exerted by each gas is same?

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  9. Question 9

    18 Apr 2026 S2

    6
    A container contains mixture of He and Ne gases at certain temperature. He is 20 % by mass of mixture. What is the ratio of partial pressure of Helium to Neon ?

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