What is boiling point elevation?


Quick Answer

The term boiling point elevation refers to solutions having higher boiling points than pure solvents. Boiling point elevation is a colligative property of a solution.

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What is boiling point elevation?
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Full Answer

Boiling point elevation is not dependent on the type of solute (dissolved particles), but rather on their number (concentration). Suspended particles ���dilute��� the solvent, causing a drop in the solvent���s vapor pressure. Since liquids boil when their vapor pressure is equal to atmospheric pressure, diluted solvents need a higher temperature to reach that point.

Correspondingly, diluted solvents also have decreased freezing points. This colligative property is successfully utilized in the winter, when adding antifreeze to a car���s cooling system prevents freezing of the system despite temperatures below water���s normal freezing point.

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