2. Solved Papers
  3. AFMC

AFMC AFMC Solved Paper-2008

  • question_answer
    The rate constant of a first order reaction at \[27{{\,}^{o}}C\]is \[{{10}^{-3}}{{\min }^{-1}}.\] The temperature coefficient of this reaction is 2. What is the rate constant \[(in\,mi{{n}^{-1}})\] at \[\text{17}{{\,}^{\text{o}}}\text{C}\]for this reaction?

    A)  \[{{10}^{-3}}\]                                 

    B)  \[5\times {{10}^{-4}}\]

    C)  \[2\times {{10}^{-3}}\]                 

    D)  \[{{10}^{-2}}\]

    Correct Answer: B

    Solution :

                     Temperature coefficient \[=\frac{{{k}_{t}}+10}{{{k}_{t}}}\] \[2=\frac{{{10}^{-3}}}{{{k}_{t}}}\] \[{{k}_{t}}=\frac{{{10}^{-3}}}{2}=\frac{10\times {{10}^{-4}}}{2}=5\times {{10}^{-4}}\]


You need to login to perform this action.
You will be redirected in 3 sec spinner