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CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2001

  • question_answer
    The conversion of A to B follows second order kinetics. Doubling the concentration of A will increase the rate of formation of B by a factor of:

    A)  4                                            

    B)  2

    C)  1/4                                       

    D)  ½

    Correct Answer: A

    Solution :

    Conversion of \[\text{A}\xrightarrow{{}}B\]follows second order kinetics therefore, \[r=K{{[A]}^{2}}\] The concentration is doubled \[r=K{{[2A]}^{2}}=K4\,{{[A]}^{2}}\] Therefore, the new rate becomes four times.


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