A vessel of volume 2.24 l contains an ideal gas at 0°C. After a portion of the gas has been let out, the pressure in the vessel decreases by 1.0 atm (temperature remaining constant). The gas density u

Question

A vessel of volume 2.24 l contains an ideal gas at 0°C. After a portion of the gas has been let out, the pressure in the vessel decreases by 1.0 atm (temperature remaining constant). The gas density under normal conditions (0°C and 1 atm) is 1.96 g/l. The mass of released gas (in g) is

TestHub · Accepted Answer

Moles released: Delta n = Delta P x V/(RT) = 1.0 × 2.24/(0.0821 × 273) = 2.24/22.4 = 0.10 mol. Molar mass = 1.96 g/l x 22.4 l/mol = 43.9 g/mol. Mass released = 0.10 × 43.9 = 4.39 g ≈ 4 g.

Chemistry - Ideal Gas Question with Solution | TestHub

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