Physics - Heat & Thermo Question with Solution | TestHub
PhysicsHeat & ThermoHeat TransferEasy2 min
PhysicsEasysingle choice
A beaker of water at C is placed under a bell jar and the air is pumped out rapidly. What happens to the water?
Options:
Answer:
B
Solution:
The boiling point drops as the pressure on the surface drops. Once the pressure is below the vapour pressure of water at C (about 3.2 kPa), the water boils even though it is not hot. B.
Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer
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