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Secondary IV • 8mo.

Hello, I don’t understand why salt melts ice. Could you explain it to me using the atomic model please?

Chemistry
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Explanations (1)

  • Explanation from Alloprof

    Explanation from Alloprof

    This Explanation was submitted by a member of the Alloprof team.

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    Team Alloprof • 8mo.

    Hi!

    To answer this question, you need to understand and know what a phase diagram is, as shown below. In fact, salt does not melt water, but rather lowers the melting temperature.

    image.png

    All this phenomenon is due to the enthalpy of fusion which changes with the addition of solute!

    Hope that helps! Reach out if there is anything else!