How will you separate mixture of two gases ?

1.	How will you separate mixture of two gases ?
Answer» Fractional distillation technique Grahm's law Osmosis CHROMATOGRAPHY Solution :Fractional distillation is used to separate a mixture of miscrible liquids which differ in their boiling points , e.g. , `(C_(6) H_(6) + CHCl_(3))` Mixture of two gases can be separated by DIFFUSION technique . According to Graham.s law of diffusion or effusion : At constant temperature and pressure , the rate of diffusion of a gas is inversely proportional to the square root of its density (4) or molecular MASS (M) . i.e., `r prop (1)/(sqrtd) or (1)/(sqrtM)` (at constant T and p) `or (r_(1))/(r_(2)) = sqrt((d_(1))/(d_(2))) = sqrt((M_(2))/(M_(1))) ( M = 2 xx d)` Thus , the lighter gas will diffuse faster and the one with higher molecular mass is left behind . Osmosis is the simple process of movement of only solvent molecules from the region of their higher concentration to the region of the lower concentration through a semipermeable membrane . Chromatography is used to separate a mixture of miscible liquids with differ in their rate of adsorption on the stationary PHASE .

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