Question

Predicting relative boiling point elevations and freezing point depressions.

A) Raoult's Law,
B) Boyle's Law,
C) Charles's Law,
D) Dalton's Law

Answer 1

Boiling point elevation and freezing point depression are colligative properties of a solution. Raoult's Law can be used to predict these properties, with an ideal solution having a vapor pressure equal to that predicted by Raoult's Law.

Step-by-step explanation:

The boiling point elevation and freezing point depression are both colligative properties of a solution. These properties depend on the number of dissolved particles in the solution, rather than their chemical identity. To predict the boiling point elevation and freezing point depression, we can use Raoult's Law.

Raoult's Law states that the vapor pressure of a solution is proportional to the mole fraction of the solvent in the solution. If the intermolecular interactions in the solution are similar to those in the pure liquids, the vapor pressure will be approximately equal to that predicted by Raoult's Law, indicating an ideal solution.