CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2010

  • question_answer
    Time required for 100 per cent completion of a zero order reaction is

    A) \[\frac{2k}{a}\]                                

    B) \[\frac{a}{2k}\]

    C) \[\frac{a}{k}\]                                   

    D) \[ak\]

    Correct Answer: C

    Solution :

    For zero order reactions,                 \[[Ar]=-kt+{{[A]}_{0}}\] where, \[{{[A]}_{0}}=\] initial concentration = a \[[A]=\] remaining concentration \[=a-a=0\] On putting values of \[{{[A]}_{0}}\] and \[[A]\], we get                                 \[t=\frac{a}{k}\]


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