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Water

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  • 18-05-2012 11:33pm
    #1
    jmg90
    Registered Users Posts: 40 ✭


    Hi guys
    im not sure if im in the right section for posting this, but anyway, im entering a competition in my local night club, and there question is as follows:

    What type of water doesn't freeze......

    Any Help would be much appreciated

    Thanks :)


Comments

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    #2
    Turtwig
    Registered Users Posts: 26,578 ✭✭✭✭Turtwig


    Frozen water.


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    #3
    kwalshe
    Closed Accounts Posts: 959 ✭✭✭kwalshe


    nanotube water


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    #4
    citrus burst
    Registered Users Posts: 147 ✭✭citrus burst


    Hot water


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    #5
    krd
    Banned (with Prison Access) Posts: 3,455 ✭✭✭krd


    Pure water


    I'm not sure what answer they're looking for. I've this experiment I haven't done it.

    If you remove all the impurities from water - use distilled water, then boil off the air in it, and then put a plastic bottle of this water in a deep freeze. The water will not freeze.

    When you take it out of the freezer and pour the water, as soon as it hits the air it starts to freeze.

    The reason - I've been told - is the water crystals/ice need something to form around, like a little impurity. If it's just other water molecules the ice crystals have nothing to form around.


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    #6
    Agent_99
    Registered Users Posts: 918 ✭✭✭Agent_99


    If its a night club comp,

    uisce beatha :D


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    #7
    rgunning
    Registered Users Posts: 219 ✭✭rgunning


    Three different answers, depending on the temperature you're looking at:

    1) Salt water/Sea water - due to freezing-point depression (liquid to around - 21 °C)

    2) Pure water - due to crystal homogeneous nucleation (liquid to around -50 °C)

    3) Water trapped in nanotubes - (liquid to around -265 °C)

    Unless Dr. Sheldon Cooper is running the competition, I'd go with no.1, it's the most commonly known one.


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    #8
    Morbert
    Registered Users Posts: 3,457 ✭✭✭Morbert


    rgunning wrote: »
    Three different answers, depending on the temperature you're looking at:

    1) Salt water/Sea water - due to freezing-point depression (liquid to around - 21 °C)

    2) Pure water - due to crystal homogeneous nucleation (liquid to around -50 °C)

    3) Water trapped in nanotubes - (liquid to around -265 °C)

    Unless Dr. Sheldon Cooper is running the competition, I'd go with no.1, it's the most commonly known one.

    The trouble is all those types freeze.


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    #9
    FISMA
    Closed Accounts Posts: 2,616 ✭✭✭FISMA


    Colloquially speaking, maybe they're looking for "moving" water.

    "Moving" in quotes as it is a term that Physics-types should rarely use...


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    #10
    Doylers
    Registered Users Posts: 1,704 ✭✭✭Doylers


    That would be an ecumenical matter


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    #11
    MiNdGaM3
    Registered Users Posts: 921 ✭✭✭MiNdGaM3


    The water in Don Juan Pond


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