The rms speed of oxygen at room temperature is about 500m/s The speed of hydrogen at the same temperature is about
5000m/s
2000m/s
4000m/s
1000 m/s
The rms speed is given by vrms=3RTMwat constant temperature vrms∝1MwRatio of Vrms of Oxygen and hydrogen,(Vrms)O2(vrms )H2=MH2MO2 ⇒500(Vrms)=232=14=14⇒(Vrms)=2000m/s