Study Material, Chemistry, Solution and Colligative Properties, Depression in f.pt. of Solvent


Study Material >Chemistry >Solution and Colligative Properties >Depression in f.pt. of Solvent

Depression in f.pt. of the Solvent(Cryoscopy)

 

Freezing point is the temperature at which the liquid and the solid states of a substance are in equilibrium with each other or it may be defined as the temperature at which the liquid and the solid states of a substance have the same vapour pressure. It is observed that the freezing point of a solution is always less than the freezing point of the pure solvent. Thus the freezing point of sea water is low than that of pure water. The depression in freezing point      or  of a solvent is the difference in the freezing point of the pure solvent  and the solution .

                 or 

 or  (anhydrous) are used to clear snow on roads. They depress the freezing point of water and thus reduce the temperature of the formation of ice.

Depression in freezing point is determined by Beckmann’s method and Rast’s camphor method. Study of depression in freezing point of a liquid in which a non-volatile solute is dissolved in it is called as cryoscopy.



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I would rather entertain and hope that people learned something than educate people and hope they were entertained.

- Ashwin kumar

I would rather entertain and hope that people learned something than educate people and hope they were entertained.

- Ashwin kumar

I would rather entertain and hope that people learned something than educate people and hope they were entertained.

- Ashwin kumar

I would rather entertain and hope that people learned something than educate people and hope they were entertained.

- Ashwin kumar

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