Rohan notices that water droplets form on the outer surface of a glass filled with ice-cold water. Which…

Rohan notices that water droplets form on the outer surface of a glass filled with ice-cold water. Which component of air is responsible for this observation?
  1. Water vapour
  2. Carbon dioxide
  3. Nitrogen gas
  4. Oxygen gas

Solution

Air contains invisible water vapour which cools down upon coming into contact with the cold surface of the glass and condenses into liquid water droplets.

Asked in: Homi Bhabha Practice

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