J & K CET Medical J & K - CET Medical Solved Paper-2009

  • question_answer
    Which one of the following is the correct quadratic form of the Ostwalds dilution law equation?

    A)  \[{{\alpha }^{2}}C+\alpha K-K=0\]

    B)  \[{{\alpha }^{2}}C-\alpha K-K=0\]

    C)  \[{{\alpha }^{2}}C-\alpha K+K=0\]

    D)  \[{{\alpha }^{2}}C+\alpha K+K=0\]

    Correct Answer: A

    Solution :

                    Ostwalds dilution law equation is, \[K=\frac{C{{\alpha }^{2}}}{(1-\alpha )}\] \[K.(1-\alpha )=C{{\alpha }^{2}}\] \[C\alpha -K(1-\alpha )=0\] \[C{{\alpha }^{2}}-K+K\alpha =0\] or            \[C{{\alpha }^{2}}+K\alpha -K=0\]


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