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Thread: why the water droplets appear in cold water bottle?

  1. #1 why the water droplets appear in cold water bottle? 
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    why the water droplets appear around the cold water bottle even we clean its water droplets?


    gopinath gorai
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  3. #2  
    Reptile Dysfunction drowsy turtle's Avatar
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    There is water vapour in the air, which condenses out at low temperatures to form liquid water. The air around the cold bottle is also cold, so water vapour in the air turns into liquid water, and nucleates on imperfections on the surface of the bottle.


    "The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at or repair." ~ Douglas Adams
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    Geo
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    As mentioned above, the air surrounding the bottle is reaching what's known as the dew point. The same process is responsible for cloud formation.

    Because there's a temperature difference between the air and the bottle, energy must transfer from the warmer air to the colder bottle. One of the ways this happens, is the formation of water droplets on the bottle. This is known as latent heat. The same process provides energy to Hurricanes.

    These two processes are one in the same.
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  5. #4  
    Veracity Vigilante inow's Avatar
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    Quote Originally Posted by Geo
    As mentioned above, the air surrounding the bottle is reaching what's known as the dew point. The same process is responsible for cloud formation.
    Older thread, but I didn't want to create a new one just for this. This is just too beautiful not to share:

    http://apod.nasa.gov/apod/ap110516.html

    If you could sit back and watch clouds and the sky move all night and day, what might you see? One answer from the island of Tenerife, captured over the course of the year, includes sequences that are not only breathtaking but instructive. Visible in the above time-lapse movie include clouds that seem to flow like water, a setting sun that shows numerous green flashes, the Milky Way Galaxy rising behind towering plants, a colorful double fogbow, lenticular clouds that appear stationary near their mountain peaks, and colorful moon coronas.
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