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by skippy on February 19th, 2007

skippy

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Why does fresh water freeze faster than salt water?

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Answers. 14 helpful answers below.

  • by Sympho de Proggy on October 19th, 2008

    Sympho de Proggy

    when salts solute in water they break apart as ions

    for example table salt, NaCl, becomes Na+(aq) Cl-(aq)
    water, which is already somewhat polarizes, reacts to the soluted ions by polarizing further, thus making the bonds between water molecules more powerful

    stronger bonds means more it takes more energy to keep them apart, means they'll solidify at a higher temperature

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  • by Sympho de Proggy on October 19th, 2008

    Sympho de Proggy

    yes, it does,

    when salts solute in water they break apart as ions
    for example table salt, NaCl, becomes Na+(aq) Cl-(aq)
    water, which is already somewhat polarizes, reacts to the soluted ions by polarizing further, thus making the bonds between water molecules more powerful

    stronger bonds means more energy to keep them apart, means they'll solidify at a higher temperature

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  • by Ephraim on October 19th, 2008

    Ephraim

    Salt water freezes at a lower temperature point than fresh water. Fresh water freezes at 0c, the freezing point of salt water depends on how much salt is in the water but it can be anywhere from 0c (with virtually no salt) to -21.1 c when the water is fully saturated with salt (23.3% salt is the saturation point of salt in water).

    Salt water will freeze slower than fresh water and need a lower temperature to freeze.

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  • by singwell-is off researching a lot on November 10th, 2007

    singwell-is off researching a lot

    Yes, that is why lakes can freeze but seas do not, except in the north and south polar regions.

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  • by Becca Baby on November 10th, 2007

    Becca Baby

    yes....salt melts ice

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  • by Anonymous on February 19th, 2007

    Anonymous

    I'm assuming this is because salt water freezes at a lower temperature than fresh water (0 degrees fereinheight(sp)) and is therefore more affected by the temperature.

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  • by cmissy on April 25th, 2009

    cmissy

    because salt can lower temp

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  • by Anonymous on December 11th, 2008

    Anonymous

    iS THIS A GREAT PORJECT FOR AN 11 YEAR OLD TO DO? SALT WATER?

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  • by fer sandoval on February 15th, 2011

    fer sandoval

    because salt water drops its temperature and it reduces by putting salt the kimikils in the saly have bacteria.

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  • by Christi_F on December 10th, 2010

    Christi_F

    because when salts solute in water they brake apart as ions

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  • by xprofessor on November 11th, 2007

    xprofessor

    Salt lowers the freezing point of water. So as temperature drops, fresh water freezes before saltwater. Likewise, ice just below the freezing point will melt when salt is added.

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  • by Sympho de Proggy on October 19th, 2008

    Sympho de Proggy

    no, salt water freezes first.

    when salts solute in water they break apart as ions

    for example table salt, NaCl, becomes Na+(aq) Cl-(aq)
    water, which is already somewhat polarizes, reacts to the soluted ions by polarizing further, thus making the bonds between water molecules more powerful

    stronger bonds means more it takes more energy to keep them apart, means they'll solidify at a higher temperature

    4 comments | Post one | Permalink

  • by Keenan_S on November 29th, 2010

    Keenan_S

    because salt melts ice

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  • by Anonymous on January 7th, 2009

    Anonymous

    Because salt can lower the freezing point of the water and will take longer to freeze

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