water droplets are seen on the outer surface of a cold drink bottle? ans for reason for 2mark
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Answer:
When a cold soft drink bottle is kept in open air,the water vapour present in the surrounding air condenses on the bottle. The water molecules are slowed down and stick to the surface which is cold. These water droplets are seen as dew on the surface of the cold drink bottle.
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1. The temperature of the outer surface of a cold drink bottle is less than that of the atmosphere.
2. Therefore, the excess of water vapour from the air condenses to form droplets on the outer surface of the cold drink bottle.
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