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    spacefire5458's Avatar
    spacefire5458 Posts: 84, Reputation: 1
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    #1

    Jul 30, 2007, 03:49 PM
    Cracking ice
    When I take ice out of the freezer and put it in water why does the ice crack it always does it?
    Thanks:)
    albear's Avatar
    albear Posts: 1,594, Reputation: 222
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    #2

    Jul 30, 2007, 03:54 PM
    Drastic change in temperature splits the bonds between water molecules
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #3

    Jul 30, 2007, 04:21 PM
    Well yes it is the drastic change in temp but the bonds split at boiling. It cracks because there is a sudden expansion in the volume of the cube when it hits the water.
    Capuchin's Avatar
    Capuchin Posts: 5,255, Reputation: 656
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    #4

    Jul 30, 2007, 11:32 PM
    I'm not sure about the expansion, ballenger. Surely if anything it shrinks.
    mikezapwnzor's Avatar
    mikezapwnzor Posts: 99, Reputation: 1
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    #5

    Jul 30, 2007, 11:43 PM
    When you freeze water it expands, and when you put it into the warm watter it gets larger and creates a vacuum, thus sucking in air quickly, but to get the air inside little cracks have to form to let it through... obviously
    Capuchin's Avatar
    Capuchin Posts: 5,255, Reputation: 656
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    #6

    Jul 30, 2007, 11:54 PM
    What gets larger??
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
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    #7

    Jul 31, 2007, 12:09 PM
    I think he is saying the ice cube gets larger which is roughly what I was saying. As water temp lowers it's volume decreases but then increase to more than the original state just as it frezes. When the cube is dropped into a warmer liquid the ice crystals expand and fracture.
    Capuchin's Avatar
    Capuchin Posts: 5,255, Reputation: 656
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    #8

    Jul 31, 2007, 12:14 PM
    I still don't get it. Water shrinks with increasing temp up to 4 deg C, right?
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