A mixture of CO and CO 2 has a density of 1.5 g/l at 27°C and 760 mm pressure. If 1 l of the mixture is exposed to alkali, what would be the pressure of the remaining gas at the same volume and temper

Question

A mixture of CO and CO 2 has a density of 1.5 g/l at 27°C and 760 mm pressure. If 1 l of the mixture is exposed to alkali, what would be the pressure of the remaining gas at the same volume and temperature?

TestHub · Accepted Answer

Average molar mass bar M = (dRT)/P = 1.5 × 0.0821 × 300 = 36.95 g/mol. With x = mole fraction of CO 2 : 28(1-x) + 44x = 36.95 ⇒ x = 0.559. Alkali absorbs CO 2 ; remaining CO exerts 760 × (1 - 0.559) = 335 mm. Matches (c).

Chemistry - Ideal Gas Question with Solution | TestHub

Options:

Doubts & Discussion