Chemistry - Ideal Gas Question with Solution | TestHub
ChemistryIdeal GasIdeal Gas Equation & problemsEasy2 minQB
ChemistryEasysingle choice
A plot of the density versus the pressure for air at 27°C has the limiting slope = 1.233 × 10⁻⁵ kg m⁻³ Pa⁻¹. The composition of air (contains only N₂ and O₂) in volume ratio of N₂ and O₂ is (R = 8.0 J/K-mol)
Options:
Answer:
C
Solution:
Slope = M/RT ⇒ M = 1.233×10⁻⁵ × 8.0 × 300 = 0.0296 kg/mol = 29.6 g/mol. With x = fraction of N₂: 28x + 32(1-x) = 29.6 ⇒ x = 0.6, i.e. N₂:O₂ = 60:40. Matches (c).
Stream:JEESubject:ChemistryTopic:Ideal GasSubtopic:Ideal Gas Equation & problems
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