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At at certain temperature, the value of the slope of the plot of osmotic pressure `(pi)` against concentration `(C in mol L^(-1))` of a certain polymer solution is 291 R. The temperature at which osmotic pressure is measured is (R is gas constant)

A

`271^(@)C`

B

`18^(@)C`

C

`564 K`

D

`18 K `

Text Solution

Verified by Experts

The correct Answer is:
B
`pi = CRT, (pi)/(C) = RT . ` But slpe = 291 R
`there RT = 291 R rarr T = 291 K`
`therefore R T = (291 - 273)^(2)C = 18^(@)C`
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Knowledge Check

  • At a certain temperature, the value of the slope of the plot of osmotic pressure (pi) against concentration ( "C in mol L"^(-1) ) of a certain polymer solution is 291R. The temperature at which osmotic pressure is measured is (R is gas constant)

    A
    `271^(@)C`
    B
    `18^(@)C`
    C
    564 K
    D
    18 K

  • At constant temperature, the osmotic pressure of a solution

    A
    Directly proportional to the concentration
    B
    Inversely proportional to the concentration
    C
    Directly proportional to the square of the concentration
    D
    Directly proportional to the square root of the concentration.

  • At constant temperature , the osmotic pressure of a solution is __

    A
    directly proportional to the concentration
    B
    Inversely proportional to the concentration
    C
    directly proportional to the square of the concentration
    D
    directly proportional to the square root of the concentration

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