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What type of solutions exhibit positive deviations from Raoult’s law?

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Which of the following solutions shows positive deviation from Raoult's law ?

Which solution will show positive deviation from Raoult's law?

Knowledge Check

  • Solutions showing negative deviations from Raoult's law

    A
    ethyl alcohol + water
    B
    nitric acid + water
    C
    acetone + carbon disulphide
    D
    acetone + benzene.

  • Which of the following solutions shows positive deviation from Raoults law ?

    A
    Acetone `+` Aniline
    B
    Acetone `+` Ethanol
    C
    Water `+` Nitric acid
    D
    Chloroform `+` Benzene

  • Which of the following is correct for a solution showing positive deviations from Raoult's law?

    A
    `DeltaV=+ve,DeltaH=+ve`
    B
    `DeltaV=-ve,DeltaH=-ve`
    C
    `DeltaV=+ve,DeltaH=-ve`
    D
    `DeltaV=-ve,DeltaH=+ve`

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    Define azeotropes. What type of azeotrope is formed by positive deviation from Raoult's law ? Give an example.

    Delta H_("mixing") for solution having positive deviations from Raoult's law is ..............

    For a non-ideal solution showing positive deviation from Raoult's law, Delta H_("mixing") mixing is ............ and delta V_("mixing") is ...............

    Assertion:The solutions which show large positive deviations from Raoult's law form maximum boiling azeotropes. Reason : 95% aqueous solution of ethanol is maximum boiling azeotrope

    Binary liquid mixtures which exhibit positive deviations from Raoult’s law boil at ..... temperature than the expected b.pt -

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