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![[Post New]](/templates/default/images/icon_minipost_new.gif) 6 Aug 2008 19:08:56 IST
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please give the relation b/w coligative pro.and raoult law
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6 Aug 2008 19:09:33 IST
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please give the relation b/w coligative pro.and raoult law
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6 Aug 2008 19:59:39 IST
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which coligative po.
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6 Aug 2008 20:10:36 IST
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ncert padhle.
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7 Aug 2008 21:16:05 IST
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Dilute solutions containing non-volatile solute exhibit some special properties which depend upon the number of solute particles present in the solution irrespective of their nature.These properties are termed as colligative properties.Lowering in vapour pressure is one of the important colligative properties.
If Po is the vapour pressure of pure solvent and Ps is the vapour pressure of the solution, the difference Po-Ps is termed as lowering of vapour pressure and the ratio( Po-Ps)/Po is called as relative lowering of vapour pressure.
Raoult,in 1886, established a relationship between relative lowering of vapour pressure and composition of the solution.The relationship is called as Raoults law and it states that"The relative lowering in vapour pressure of a dilute solution is equal to mole fraction of the solute present in the solution.So (Po-Ps)/Po=n/n+N where n is the no of moles of solute and N is the no of moles of the solvent.
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