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b. How can you relate the formation of water droplets on the outer surface of a bottle taken out of refrigerator with formation of dew?
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  • If the temperature of unsaturated air is decreased, a temperature is reached at which the air becomes saturated with water vapour.
  • In both the given processes, the temperature of the air near the surface of bottle or the leaves (in case of dew formation) decreases to dew point.
  • Thus, the air becomes saturated with water vapour. As a result, water vapour converts or condenses into tiny water droplets which appears on the surface of bottle or leaves.
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