Chemistry - Ideal Gas Question with Solution | TestHub
ChemistryIdeal GasProblems related with container/piston/SPMHard2 minQB
ChemistryHardsingle choice
A uniform vertical tube 100 cm long is closed at the bottom and open at the top. It holds 50 cm of air at the bottom and a 50 cm column of mercury above it, filling the tube to the top. The temperature is initially 300 K and the atmospheric pressure is 75 cm Hg. The tube is heated slowly until 25 cm of mercury has overflowed. The temperature is then (Assume no thermal expansion for Hg).
Options:
Answer:
C
Solution:
Initial: = 75 + 50 = 125 cm Hg, air column 50 cm, = 300 K.
Final: 25 cm of Hg has overflowed, so Hg = 25 cm and the air column = 100 - 25 = 75 cm. = 75 + 25 = 100 cm Hg.
/ = /: = 300 x (100 x 75)/(125 x 50) = 300 x 7500/6250 = 360 K.
Answer: ().
Stream:JEESubject:ChemistryTopic:Ideal GasSubtopic:Problems related with container/piston/SPM
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