MolSynapsequestion bank

MolSynapse / Question bank / Gaseous State: Ideal Gases / Kinetic theory of gases and molecular speeds

JEE Main levelSingle correct optionDifficulty 2 of 3ig177

The rms speed of a gas is $300 m s^{- 1}$ at $300 K$ . Its rms speed at $1200 K$ is

A $600 m s^{- 1}$
B $1200 m s^{- 1}$
C $424 m s^{- 1}$
D $150 m s^{- 1}$

Answer: A

u_{rms} \propto T

.

u_{2} = 300 \times 1200/300 = 300 \times 2 = 600 m s^{- 1}

.

Practice Gaseous State: Ideal Gases More on Kinetic theory of gases and molecular speeds

Previous questionNext question

More questions on Kinetic theory of gases and molecular speeds