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  • 5 years ago

How does freezing point depression work? Why does the addition of a solute lower the freezing point?

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  1. anonymous
    • 5 years ago
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    It works when a non-volatile substance is added to a solvent. Usually the pure solvent is water in many questions. Non-volatile substances don't produce any vapor pressure. So when adding a non-volatile substance to water, part of the mixture does not create a vapor. Also, they do not form part of the solid when water freezes since usually the substance is a solid. It obstructs the crystal formation of the H20 and thus requires a lower freezing temperature...

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