THE DENSITY OF MIXTURE OF NITROGEN AND OXYGEN IS 1.15g/L AT 750 mm OF Hg AT 300 K.CALCULATE THE PERCENTAGE COMPOSITION OF THESE GASES IN THE MIXTURE.ASSUME THE GASES BEHAVE IDEALLY.

Asked by  | 8th May, 2012, 10:27: PM

Expert Answer:

PV = n RT= (m/M) RT
M= dRT /P
=1.15 x .0821 x 300/ 750 /760 = 28.7gmol-1
Let w1 be the mass fraction of N2 ans 1- w2 is the mass fraction of O2
so w1 X28 + (1- w1 )X 32 = 28.7
w1 = 0.825
% compostion of N2 = 82.5 %
% composition of O2 = 17.5 %

Answered by  | 19th Jun, 2012, 12:17: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.