What is negative deviation from ideal solution .Give an example?
Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM
A negative deviation from Raoult's law means that the vapor pressure of solution is lower than expected vapor pressure above the solution. If the solute A-A bond and solvent B-B is weaker than A-B bond i.e. solute and solvent are tightly bound to each other as they are to themselves, then the solution will show a negative deviation from Raoult's law because the solvent molecules will not find it easier to escape from solution into the gas phase.
Acetone and chloroform form non ideal solution showing negative deviation from Raoult's law, hydrogen bond is created between acetone and chloroform as a result escaping is lesser then expected by Raoult's law and so it will show negative deviation.
Answered by | 4th Jun, 2014, 03:23: PM
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