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 300 K, B at 600 K and C at 900 K. Flask A contain H2 gas, flask B contain CH4 gas and flask C contain O2 gas, and masses of all gases are same. Assume ideal behaviour of gases.
Flask with greater mean free path for the molecules (rH2 : rCH4 : rO2 = 1 : 2 : 2)
Options:
Answer:
C
Solution:
λ = 1/(√(2)π d2 (N/V)) ∝ 1/(r2 n). With r2 ratios 1:4:4 and n ratios 1/2:1/16:1/32: r2 n gives A: 0.5, B: 0.25, C: 0.125. The smallest r2n gives the largest λ, so flask C has the greatest mean free path. Hence Ans (c).
Stream:JEESubject:ChemistryTopic:Ideal GasSubtopic:Collision Parameters
⏱ 2mℹ️ Source: QB
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