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A solution containing components A and 8...

A solution containing components A and 8 follows Raoult's law, when

A

A-B attraction force is greater than that of A-A and B-B

B

A-B attraction force is less than that of A-A and B-B

C

A-B attraction force is same as that of A-A and B-B

D

None of the above

Text Solution

Verified by Experts

The correct Answer is:
C
Raoult's law is valid tor ideal solutions only. The A-8 force of attraction is equal to the force of attraction between A-A and 8-8.
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State Raoult's law for a solution containing volatile components. How does Raoult's law become a special case of Henry's law ?

(a) State Raoult's law for a solution containing volatile components. How does Raoult' s law become a special case of Henry's law? (b) 1.00 g of a non-electrolyte solute dissolved in 50 g of benzene lowered the freezing point of benzene by 0.40 K. Find the molar mass of the solute. (K_(f)" for benzene "=5.12 kg mol^(-1))

Knowledge Check

  • A solution containing components A and B follows Raoult's law, when

    A
    A-B attraction force is greater than A-A and B-B attractive forces
    B
    A-B attraction force is less than A-A and B-B attractive forces
    C
    A-B attraction force remains same as A-A and B-B attractive forces
    D
    Volume of solution is different from sum of volumes of solute and solvent.

  • A solution containing components A and B follows Raoult's law when

    A
    A - B attraction force is greater than A - A and B-B
    B
    A - B attraction force is less than 4 - A and B-B
    C
    A - B attraction force remains same as A - A and B-B
    D
    volume of solution is different from sum of volumes of solute and solvent.

  • Answer the questions (given below) which are based on the following diagram: vapour pessure diagram for real solution of two liquids A and B that exhibit a negative deviation from Raoult's law. The vapour pressure of both A and B are less than predicted by Raoult's law. The dashed lines represent the plots for ideal solutions. Solution containing components A and B show this type of deviation from ideal behaviour when:

    A
    `{:("Attraction" A...B,DeltaH_("mix"),DeltaV_("mix"),B.P),("Larger than average of" A...A .B..B"attraction",+ve,+ve,"larger than expected"):}`
    B
    `{:("Attraction" A...B,DeltaH_("mix"),DeltaV_("mix"),B.P),("As in" (a),-ve,-ve,"As in" (a)):}`
    C
    `{:("Attraction" A...B,DeltaH_("mix"),DeltaV_("mix"),B.P),("Smaller than average of" A...A..B..B "attraction",+ve,+ve,"Smaller than expected"):}`
    D
    `{:("Attraction" A...B,DeltaH_("mix"),DeltaV_("mix"),B.P),("As in"(c),-ve,-ve,"As in"(c)):}`

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    Answer the questions (given below) which are based on the following diagram. Vapour pressure plots of benzene-toluence mixture at 20^(@)C . Solution of benzene and toluence are ideal. Raoult's law is valid for both components over the entrie range of concentration. An ideal solution consisting of two components A and B (such as benzene and toluence) is one in whic:

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