Chemistry - Ideal Gas Question with Solution | TestHub
ChemistryIdeal GasIdeal Gas Equation & problemsEasy2 minQB
ChemistryEasysingle choice
A vessel of 5.0 l capacity contains 1.4 g nitrogen at 1800 K. Assuming that at this temperature, 40% of molecules are dissociated into atoms and the gas is ideal, what is the gas pressure?
Options:
Answer:
A
Solution:
Initial n(N2) = 1.4/28 = 0.05 mol. With 40% dissociated: undissociated N2 = 0.05 × 0.6 = 0.03 mol; N atoms = 0.05 × 0.4 × 2 = 0.04 mol. Total n = 0.07 mol. P = nRT/V = 0.07 × 0.0821 × 1800 / 5 = 2.07 atm. Confirms Ans: (a) 2.07 atm.
Stream:JEESubject:ChemistryTopic:Ideal GasSubtopic:Ideal Gas Equation & problems
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