Calculate root mean square speed, average speed and most probable speed of:
a. O2 at STP.
b. Ethane at 27°C and 720 mm of Hg.
c. O2 at 17°C.
d. O2 if its density is 0.0081 g mL-1 at 1 atm.
e. O2 if 6.431 g of it occupies 5 litre at 750 mm.
f. O3 at 20°C and 82 cm Hg. (IIT 1985)