Two different gases at the same temperature have equal root mean square velocities.

Root Mean Square Velocity

Two different gases at the same temperature have the same average kinetic energy.

Two different gases have exactly the same temperature.Does this mean their molecules have the same rms speed?

Two different gases have exactly the same temperature. Does this mean that their molecules have the same r.m.s. speed?

The mass of a molecule of krypton is 2.25 times the mass of a hydrogen molecule. A mixture of equal masses of these gases is enclosed in a vessel. At any given temperature, the ratio of the root mean square velocities of krypton and hydrogen gases will be ______ .