Raoult's Law

 Raoult's Law:


"When you add a solute to a solvent, the vapor pressure of the solvent decreases."


In other words, the presence of a solute (like salt or sugar) reduces the ability of the solvent (like water) to evaporate.


Why does this matter?


1. Boiling point increases: Solution boils at a higher temperature.

2. Freezing point decreases: Solution freezes at a lower temperature.


Real-life example: Saltwater boils at a higher temperature than pure water, and freezes at a lower temperature.



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