Definition Of Depression Of Freezing Point

The freezing points of solutions are all lower than that of the pure solvent and is directly proportional to the molality of the solute.

Definition of depression of freezing point. Examples include salt in water alcohol in water or the mixing of two solids such as impurities into a finely powdered drug. Freezing point depression is a colligative property of matter. The resulting liquid solution or solid solid mixture has a lower freezing point th. Frēz ing poynt dĕ prĕs shŭn a method used to determine osmotic concentration by comparing freezing point of a solution with values of a pure solvent.

Freezing point depression is the decrease of the freezing point of a solvent on the addition of a non volatile solute. In all cases the substance added present in smaller amounts is considered the solute while the original substance present in larger quantity is thought of as the solvent. Medical dictionary for the health professions and nursing farlex 2012. Colligative properties depend on the number of particles present not on the type of particles or their mass.

When a substance starts to freeze the molecules slow down due to the decreases in temperature and the intermolecular forces start to take over.