Thursday, February 24, 2011

Types of properties of solutions

There are following three types of properties of solution:
1. Additive properties
2. Constitutive properties
3. Colligative properties

Additive properties:
These are the properties which are due to sum of corresponding properties of individual atoms or functional groups within the molecules e.g. molecular weight.

Constitutive property:
These are the properties which depend upon the structural arrangement of atoms within the molecules for example optical properties and surface and interfacial properties.

Colligative property:
These are the properties which depend upon the number of molecules present in solution.
Following are colligative properties of dilute solution:

1. Lowering of vapor pressure
2. Elevation of boiling point
3. Depression of freezing point
4. Osmotic pressure
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