Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoKinetic Theory of Gases and Gas LawsMedium2 minQB
PhysicsMediuminteger

A faulty barometer has some air above the mercury and reads 70 cm when a correct one reads 76 cm. The tube is pushed down into the mercury until the air volume is halved. Find the new reading in cm .

Answer:
64
Solution:

The trapped air is at of Hg. Halving its volume makes it 12 cm of Hg, so the reading is .

Subject:PhysicsTopic:Heat & ThermoSubtopic:Kinetic Theory of Gases and Gas Laws
⏱ 2mℹ️ Source: QB

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