Given, p= Pressure V= Volume m= mass Now, using Ideal gas law, pV=nRT... ...(i) Here n= mass of gas =m∕M R= Gas constant ∵ We know that p,V and m are same for hydrogen and oxygen and from Eq. (i), we have T=
pV
nR
=
pVM
mR
.... (ii) For oxygen, TO2∝MO2 For hydrogen, TH∝MH Now, the ratio of TO2∕TH is