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18 December, 05:20

What do you think happens to the air in the collid when ice cream melts?

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  1. 18 December, 05:24
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    Answer: Simple

    The ...
  2. 18 December, 05:46
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    The air escapes into the atmosphere.

    An emulsion is a colloidal dispersion of one liquid in another liquid in which it does not dissolve.

    Ice cream is essentially an emulsion of the fat in milk with a sugar solution trapped in a network of small ice crystals. Other chemicals are added to prevent the emulsion from separating, and air bubbles are mixed into the semisolid mixture.

    Up to 50 % of the volume of ice cream can be air.

    When the ice cream melts, the air bubbles are no longer trapped. They just escape into the atmosphere.

    If you re-freeze the melted ice cream, its volume will be much less than the original.
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