Manipal Engineering Manipal Engineering Solved Paper-2011

  • question_answer
    The osmotic pressure of a 5% (wt./vol.) solution of cane sugar at\[{{150}^{o}}C\]is

    A) \[3.078\,\,atm\]

    B)                                        \[4.078\,\,atm\]

    C)                        \[5.078\,\,atm\]              

    D)                        \[2.45\,\,atm\]

    Correct Answer: C

    Solution :

    \[C=\frac{5}{342}\times \frac{1}{100}\times 1000=\frac{50}{342}mol\,\,{{L}^{-1}}\]                                      \[\pi =\frac{50}{342}\times 0.082\times 423\]                                 \[=5.07\,atm\]


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