At what temperature, pressure remaining unchanged, will the rms velocity of hydrogen be doubled its value at NTP ?

The pressure exerted by an ideal gas is P = (1)/(3) (M)/(V)C^(2) , where the symbols have their usual meaning. Using standard gas equation, PV = RT, we find that C^(2) = (3 RT)/(M) or C^(2) oo T . Average kinetic energy of translation of one mole of gas =(1)/(2) MC^(2) = (3 RT)/(2) with the help of the passage given above, choose the most appropriate alternative for each of the following quetions : At what temperature, pressure remaining unchanged, will the rms velocity of hydrogen be double its value at NTP ?

At what temperature will be r.m.s velocity of hydrogen be double of its value at NTP?

At what temperature will the r.m.s. velocity of a gas be double its value at N.T.P. ?

At what temperature , will the root mean square velocity on hydrogen be double of its value at S.T.P ., pressure remaining constant ?

At what temperature , will the root mean square velocity on hydrogen be double of its value at S.T.P ., pressure remaining constant ?

At what temperature will the R.M.S. velocity of a gas be double its value at N.T.P.?

At what temperature will the root mean square velocity hydrogen be double of its value at S.T.P, Pressure remaining same ?

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 hydrogen is double its value at STP.