📐 Formula — The freezing point depression is calculated as , where is the freezing point depression, is the solvent-dependent freezing point depression constant, is the van’t Hoff factor, and is molality.
Solute particles disrupt crystal formation → the solvent freezes at a lower temperature
1. What happens to a solvent’s freezing point when a solute is added?
2. Why does adding salt cause water to freeze at a lower temperature?
3. What does boiling-point elevation describe when a non-volatile solute is added to a solvent?
What is freezing point depression?
It is the lowering of a solvent’s freezing point when a solute is added.
What is the formula for freezing point depression?
What is boiling-point elevation?
The increase in a solvent’s boiling point when a non-volatile solute is added.
How is boiling-point elevation calculated?
By , where is the constant and is molality.
Freezing Point Depression
Lowering of freezing point with solutes.
Boiling Point Elevation
Increase in boiling point by solutes.
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