Chemistry - Ideal Gas Question with Solution | TestHub
ChemistryIdeal GasVapour PressureMedium2 minQB
ChemistryMediumsingle choice
Passage / Comprehension
A quantity of 5.0 kg liquid water is poured in an evacuated room of capacity 40 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:
C
Solution:
All 5.0 kg must be vapour at 0.04 atm: n = 5000/18 = 277.78 mol; V = nRT/P = 277.78 × 0.08 × 300/0.04 = 166667 l = 166.67 m3. Hence (c).
Stream:JEESubject:ChemistryTopic:Ideal GasSubtopic:Vapour Pressure
⏱ 2mℹ️ Source: QB
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