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If P^(@) and P(S) are the vapour pressur...

If `P^(@)` and `P_(S)` are the vapour pressure of the solvent and its solution respectively and `x_(1)` and `x_(2)` are the mole fraction of the solvent and solute respectively, then

A

`P_(S)=p^(@)N_(2)`

B

`P^(@)-P_(S)=p^(@)N_(2)`

C

`P_(S)=P^(@)N_(1)`

D

`(P^(@)-P_(S))//P_(S)=N_(1)//(N_(1)+N_(2))`.

Text Solution

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The correct Answer is:
B, C
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Knowledge Check

  • If P^(@) and P_(5) are the vapour pressure of the solvent and its solution respectively and x_(1) and x_(2) are the mole fraction of the solvent and solute respectively, then

    A
    `P_(s) = P^(@) 2x_(2)`
    B
    `P^(@) - P_(s) = P^(@)x_(2)`
    C
    `P_(s) = P^(@)x_(1)`
    D
    `(P^(@)-P_(s))//P_(s)=x_(1)//(x_(1)+x_(2))`

  • If P^(@) and P_(S) are the vapour pressure of the solvent and solution respectively, n_(1) and n_(2) are the mole fractions of the solvent and solute respectively, then:

    A
    `P_(S)=P^(@)n_(1)`
    B
    `P_(S)-P^(@)n_(2)`
    C
    `P^(@)=P_(S)n_(2)`
    D
    `P_(S)=P^(@)(n_(1)//n_(2))`

  • If p^(0) and P_(S) are the vapour pressures of the solvent and solution respectively, n_(1) and n_(2) are the mole fractions of the solvent and solute respectively, then

    A
    `P_(S)=P^(0)n_(1)`
    B
    `P_(S)=P^(0)n_(2)`
    C
    `P^(0)=P_(S)n_(2)`
    D
    `P_(S)=P^(0)((n_(1))/(n_(2)))`