Chemistry - Ideal Gas Question with Solution | TestHub
ChemistryIdeal GasVapour PressureEasy2 minQB
ChemistryEasysingle choice
A volume of 20 L of dry N₂ is passed through water at 300 K. After passage of gas, there is a loss of 0.72 g in water. The vapour pressure of water at 300 K is
Options:
Answer:
A
Solution:
Water carried away: n = 0.72/18 = 0.04 mol. Treating this vapour as occupying the 20 L gas volume at partial pressure p: p = nRT/V = 0.04 × 0.0821 × 300 / 20 = 0.04926 atm = 37.44 mm Hg. Confirms Ans: (a) 37.44 mm Hg.
Stream:JEESubject:ChemistryTopic:Ideal GasSubtopic:Vapour Pressure
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