PYQ Vault

How rms speed depends on temperature and molecular mass

This type of question, asked 3 times: May 2022 S1, 18 Apr 2026 S2, 19 May 2026 S1. All 3 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    May 2022 S1

    6
    When the rms velocity of a gas is denoted by vv, which one of the following relations is true? (TT = Absolute temperature of the gas.)

    Tap an option to check your answer.

  2. Question 2

    18 Apr 2026 S2

    117
    When the r.m.s. velocity of a gas is denoted by 'vv' at temperature 'TT'. Out of the following relations, the true one is

    Tap an option to check your answer.

  3. Question 3

    19 May 2026 S1

    118
    If 'mm' represents the mass of each molecule of a gas and 'TT' its absolute temperature respectively, then the root mean square velocity of the gaseous molecule is proportional to

    Tap an option to check your answer.