2. Solved Papers
  3. BCECE Medical

BCECE Medical BCECE Medical Solved Papers-2006

  • question_answer
    The decomposition of \[{{N}_{2}}{{O}_{5}}\] occurs as,\[2{{N}_{2}}{{O}_{5}}\xrightarrow{{}}4{{N}_{2}}+{{O}_{2}}\], and follows 1st order kinetics, hence :

    A)  the reaction is unimolecular

    B)  the reaction is bimolecular

    C)  \[{{t}_{1/2}}\propto {{a}^{0}}\]

    D)  none of the above

    Correct Answer: C

    Solution :

    For an nth order reaction                 \[{{t}_{1/2}}\propto \frac{1}{{{a}^{n-1}}}\] \[\therefore \] For 1st order reaction, \[{{t}_{1/2}}\propto \frac{1}{{{a}^{1-1}}}\propto {{a}^{0}}\]


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