. One litre of gaseous mixture is effused
One litre of gaseous mixture is effused in 5 min 11 sec, while 1 litre of oxygen takes 10 mins for effusion through the same pin hole. If the gaseous mixture contains methane and hydrogen, calculate the density of the gaseous mixture at 1 atm and 298 K.
A. 5.269 gm/litre
B. 4.298 gm/litre
C. 9.567 gm/litre
D. 0.351 gm/litre