Question

The rms speed of oxygen at room temperature is about 500 m/s. The rms speed of Hydrogen at the same temperature is about –

(1) 125 m/s 

(2) 2000 m/s

(3) 8000 m/s 

(4) 31 m/s

Answer 1

Correct Answer is: (2) 2000 m/s

RMS speed is given by

At constant temperature

Ratio of v_rms . of oxygen and hydrogen.