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Comparing rms speeds of two gases with different molar masses

This type of question, asked 5 times: 2 May 2023 S2, 14 May 2024 S2, 19 Apr 2025 S2, 26 Apr 2025 S1, 17 Apr 2026 S2. All 5 questions below, oldest first.

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  1. Question 1

    2 May 2023 S2

    41
    The temperature at which r.m.s. velocity of hydrogen molecules is 4.5 times that of an oxygen molecule at 47∘C47^\circ\text{C} is (Molecular weight of hydrogen and oxygen molecules are 2 and 32 respectively)

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  2. Question 2

    14 May 2024 S2

    21
    The molecular mass of a gas having r.m.s. speed four times as that of another gas having molecular mass 32 is

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  3. Question 3

    19 Apr 2025 S2

    41
    If r.m.s. velocity of hydrogen molecules is 4 times that of an oxygen molecule at 47∘C47^{\circ}C, the temperature of hydrogen molecules is (Molecular weight of Hydrogen and Oxygen are 2 and 32 respectively)

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  4. Question 4

    26 Apr 2025 S1

    18
    The temperature at which oxygen molecules will have same r.m.s. speed as helium molecules at 57∘C57^{\circ}C is (molecular masses of oxygen and helium are 32 and 4 respectively.)

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  5. Question 5

    17 Apr 2026 S2

    117
    The temperature at which r.m.s. velocity of hydrogen molecules is 4.5 times that of an oxygen molecule at 47∘47^\circ C is (molecular weight of hydrogen and oxygen are 2 and 32 respectively)

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