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Why a mixture of carbon disulphide …

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Why a mixture of carbon disulphide and acetone shows positive deviation from raoult's law?? What type of azeotrope is formed by this mixture?
  • 2 answers

Binita Biswas 5 years, 7 months ago

Thanks

Yogita Ingle 5 years, 7 months ago

  •  Raoult's law states that the mole fraction of the solute component is directly proportional to its partial pressure.
  •  When carbon disulphide is added to acetone, solute-solvent interactions are weaker than those of solute-solute and solvent-solvent interactions.
  •   This increases vapour pressure and therefore results in positive deviation from Raoult's law.
  •  Minimum boiling azetropes are formed by this mixture.

 

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