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A mixture of chlorobenzene & bromobenzene …

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A mixture of chlorobenzene & bromobenzene is nearly an ideal solution but a mixture of chloroform & acetone is not . explain?
  • 2 answers

Nikita Gupta 6 years, 11 months ago

Ideal solution follow Raoult's law at all concentrations. So no new interaction is developed in solution after mixing hence no change of enthalpy and volume is observed in solution. But, in case of mixing of chloroform and acetone, there is new force of attraction develop between the acetone and chloroform molecule. There is formation of a hydrogen bond between the hydrogen of CHCl3 and oxygen atom of CH3-CO-CH3 . Hence the intermolecular interaction between chloroform and acetone is stronger than the intermolecular interactions of chloroform-chloroform and acetone -acetone molecules. This give rise to change in enthalpy and volume of solution after mixing. So, mixing of chloroform and acetone does not give ideal solution.

Devraj Pahariya 6 years, 11 months ago

They show deviation
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