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The vapour pressure of a non-volatile …

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The vapour pressure of a non-volatile solute is less than that of a pure solvent. Give reasons.

    • Posted by Prerna Sikdar 6 years, 5 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Nishu Sahu 6 years, 5 months ago

    On adding non volatile solute the v.p. decrease because the surface area of solvent decrease due to presence of solute on the surface.So less molecules get vaporise and exert less pressure than the pure solvent.

    1Thank You

    Riya Singh 6 years, 5 months ago

    Because the vapours of solvent will collide with the particles of the non volatile solute

    1Thank You

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