At what temperature will the particles in a sample of helium gas have an rms speed of `1.0 km//s` ?

At what temperature will the rms speed of molecules of nitrogen gas be twice of that at 0^@C ?

At what temperature is the rms Speed of an atom in an argon gas cylinder equal to the rms speed of a helium gas atom at -20^(@)C ? [Atomic mass of Ar = 39.90, He = 4.04]

At what temperature the rms speed of oxygen atom equal to rms speed of helium gas atom at -10^(@)C ? Atomic mass of helium = 4 Atomic mass of oxygen = 32

At what temperature is the rms speed of an atom in an argon gas cylinder is equal to the rms speed of helium gas atom at - 20^(@)C ? ( atomic mass of Ar = 39.9, of He = 4.0 )

When pressure remaining constant, at what temperature will the r.m.s. speed of a gas molecules increase by 10% of the r.m.s. speed at NTP?

At what temperature will Oxygen molecules have the same r.m.s. speed as Helium molecules at N.T.P. ? Molecular weight of Oxygen=32 kg/kmol and molecular weight of Helium = 4 kg/kmol.