At what temperature rms speed of air molecules is doubled of that at NTP ?

At what temperature is rms speed of air molecules double of that at NTP?

At what temperature will the rms speed of air molecules be double that at NTP?

The temperature at which the rms speed of air molecules is double of that at STP is

At what temperature, the average speed of gas molecules be double of that at temperature, 27^(@)C ?

Pressure remaining constant, at what temperature will the rms speed of H_2 be double of its value at NTP ?

At what temperature, the r.m.s. speed of the molecules of a gas is half its value at NTP?

At what temperature is the R.M.S. speed of gas molecules half the value at N.T.P.?