Chemistry - Ideal Gas Question with Solution | TestHub
ChemistryIdeal GasGraham's Law of Diffusion/EffusionEasy2 minQB
ChemistryEasymultiple choice
A vessel contains a mixture of He and Ne gases. If a pin hole is made in the vessel, then for the gas remaining in the vessel
Options:(select one or more)
Answer:
A, B, D
Solution:
The lighter He (M = 4) effuses faster than Ne (M = 20), so the gas left behind loses He preferentially: the mole fraction of He falls (a ✓), that of Ne rises (d ✓), and the average molecular weight rises toward 20 (b ✓). The partial pressure of Ne falls because the total number of moles of Ne itself decreases through the hole (c ✗). Hence (a), (b), (d).
Stream:JEESubject:ChemistryTopic:Ideal GasSubtopic:Graham's Law of Diffusion/Effusion
⏱ 2mℹ️ Source: QB
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