Chemistry - Ideal Gas Question with Solution | TestHub
ChemistryIdeal GasProblems related with container/piston/SPMMedium2 minQB
ChemistryMediumsingle choice
Passage / Comprehension
A glass tube AD of uniform cross-section of length 100 cm contains two columns of air (assume ideal behaviour) AB and CD, separately by a column of mercury (BC) of length 20 cm. When the tube is horizontal, AB = 20 cm and CD = 60 cm. When the tube is held vertically with the end 'A' up, the mercury column moves down 10 cm.
Which of the following information regarding the tube is correct?
Options:
Answer:
D
Solution:
With A up, the mercury moves down 10 cm, so both trapped air columns change volume (AB: 20 → 30, CD: 60 → 50). Both columns obey Boyle's law only if trapped, so both ends must be closed. The numbers check out with both ends closed, so (d).
Stream:JEESubject:ChemistryTopic:Ideal GasSubtopic:Problems related with container/piston/SPM
⏱ 2mℹ️ Source: QB
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