The density of the vapours of a substance at 1 atm pressure and 500 K is 0.36 kg m−3. The vapour effuses through a small hole at a rate of 1.33 times faster than oxygen under the same condition.
(a) Determine (i) molar mass, (ii) molar volume, (iii) compression factor ( Z ) of the vapours and (iv) which forces among the gas molecules are dominating, the attractive or the repulsive?
(b) If the vapours behaves ideally at 1000 K, determine the average translational kinetic energy of molecules. (IIT 2002)