What is the ratio of c.m.s velocities of given sample of gas at temperatures A and B?

What is the ratio of r.m.s velocities of given sample of gas at temperatures A and B?

At a certain temperature, hydrogen molecules have r.m.s. velocity of 3km//s . What is the r.m.s. velocity of the oxygen molecules at the same temperature ?

If average velocity of a sample of gas molecules at 300 K is 5 cm s^(-1) , what is RMS velocity of same sample of gas molecules at the same temperature ? (Given , alpha : u : v = 1 : 1 .224 : 1.127)

What is average velocity of gas, if velocities of three molecules of gas are 3 m/s, 4 m/s and 5 m/s?

The r.m.s. velocity at a temperature is 2 times the r.m.s. velocity at 300 K. What is this temperature ?

The r.m.s. velocity of the molecules of an ideal gas is C at a temperature of 100 K. At what temperature its r.m.s. velocity will be doubled ?