Chemistry - Ideal Gas Question with Solution | TestHub
ChemistryIdeal GasCollision ParametersMedium2 minQB
ChemistryMediumsingle choice
Passage / Comprehension
Three flasks A, B and C have equal volumes. A is maintained at 900 K, B at 300 K and C at 600 K. Flask A contains CH₄ gas, flask B contains O₂ gas and flask C contains H₂ gas, and the masses of all gases are the same. Assume ideal behaviour of gases.
Flask with greater mean free path for the molecules (rH2 : rCH₄ : rO2 = 1 : 2 : 2)
Options:
Answer:
B
Solution:
λ ∝ 1/(r² n). With r² = 4 (CH₄), 4 (O₂), 1 (H₂) and n ∝ 1/16, 1/32, 1/2: r²n is A: 0.25, B: 0.125, C: 0.5. The smallest r²n (flask B) gives the largest mean free path. Hence Ans (b).
Stream:JEESubject:ChemistryTopic:Ideal GasSubtopic:Collision Parameters
⏱ 2mℹ️ Source: QB
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