At what temperature would `N_(2)` molecules have same average speed as `CO` molecules at 200 K.

At what temperature will nitrogen molecules have the same r.m.s speed as oxygen molecules at 400^@K ? (Molecular wt. of O_2 = 32, Molecular wt. of N_2 = 28)

At what temperature will hydrogen molecules have the same KE as nitrogen molecules at 280 K ?

At what temperature will hydrogen molecules have the same KE as nitrogen molecules at 280 K ?

Find the temperature at which oxygen molecules have the same rms speed as N_2 molecules at 7^@ C.