formulas relating osmotic pressure to colligative properties

For a given solvent the osmotic pressure depends only upon the molar concentration of solute but does not depend on its nature. The following relation relates osmotic pressure to number of moles of solute: p V=nRT Van't Hoff 's solution eq..

The excess pressure that must be applied to the solution/conc.solution to prevent osmosis. fig 3.11 - Principle of measuring osmotic pressure fig 3.12 If two solutions of identical composition but different concentration are separated by a semi permeable membr..

Colloidal particles have high average molecular masses. Therefore the mole fraction of the dispersed phase is very low. Hence, in colloidal solutions the relative lowering of vapor pressure, elevation in boiling point, depression in freezing point and osmotic pre..

Certain properties of solutions depend only on the number of particles of the solute (molecule or ions) present in definite volume of the solution and do not depend on the nature of solute. Such properties are called colligative properties. A few colliga..

. This is due to the reason that for these substances the values of other colligative properties such as elevation in boiling point or depression in freezing point are too small to be measured. On the other hand, osmotic pressure of such substances are measur..

Vant Hoff, analyzing the available data on osmotic pressure of solutions concluded that osmotic pressure of dilute solutions varied with their concentration and temperature in the same way as pressure of the gas. He enunciated some laws for solution..

Colligative Properties - Depression in Freezing Point - Freezing point of a substance is defined as the temperature at which the vapor pressure of the solid form is in equilibrium with liquid form of the substance. In other words, solid and liquid forms of the substanc..

Diagram showing relationship of Osmotic Pressure (OP), Turgor Pressure (TP) and Wall Pressure (WP) The actual pressure exerted by the protoplasm of turgid cell against cell wall is the turgor pressure..

Random motion of molecules and their collisions with a surface Random motion of molecules and diffusion of gases Applying the gas laws to relations between the pressure, temperature, and volume Standard temperature and pressure (STP) Convert between Celsius and ..

Random motion of molecules and their collisions with a surface Random motion of molecules and diffusion of gases Applying the gas laws to relations between the pressure, temperature, and volume Standard temperature and pressure (STP) Convert between Celsius and ..