Explain why the pure solvent shows a level horizontal curve as solidification occurs, but the...

Question:

Explain why the pure solvent shows a level horizontal curve as solidification occurs, but the curve for the solution slopes downward slightly.

Pure Solvent

The absence of any impurity is the defining characteristic of a pure solvent. Freezing point depression is used to describe the lowering of the freezing point of a solvent on the addition of solute of non-volatile nature. The solute is the one lesser in the amount as compared to the solvent that is more in quantity in a solution.

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Also, the freezing point of the solution is lower due to the decrease in the chemical potential of a solution as compared to a pure solvent.

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What is a Solvent? - Definition & Examples

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Chapter 15 / Lesson 5
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What is a solvent? Learn the solvent meaning, types of solvents and see multiple solvent examples to get an understanding of this concept.


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