Chemistry - Ideal Gas Question with Solution | TestHub
ChemistryIdeal GasVapour PressureEasy2 minQB
ChemistryEasysingle choice
Passage / Comprehension
A quantity of 3.6 kg liquid water is poured in an evacuated room of capacity 30 m³ maintained at 300 K. Assume ideal gas behaviour for water vapour. The vapour pressure of water at 300 K is 0.04 atm. (R = 0.08 l-atm/K-mol)
What should be the minimum volume of the room, if no liquid water is to be present finally in the room?
Options:
Answer:
B
Solution:
All 3.6 kg must be vapour at 0.04 atm: n = 3600/18 = 200 mol; V = nRT/P = 200 × 0.08 × 300/0.04 = 120000 l = 120 m³. Hence (b).
Stream:JEESubject:ChemistryTopic:Ideal GasSubtopic:Vapour Pressure
⏱ 2mℹ️ Source: QB
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