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BCECE Medical BCECE Medical Solved Papers-2010

  • question_answer
    The equilibrium constant for a reaction, \[{{N}_{2}}(g)+{{O}_{2}}(g)\,\,\,\rightleftarrows \,\,\,2NO(g)\] is \[4\times {{10}^{-4}}\] at 2000 K. In the presence of catalyst, the equilibrium is attained 10 times faster. The equilibrium constant in presence of catalyst at 2000 K is

    A)  \[10\times {{10}^{-4}}\]

    B)  \[4\times {{10}^{-2}}\]

    C)  \[4\times {{10}^{-4}}\]

    D)  \[40\times {{10}^{-4}}\]

    Correct Answer: C

    Solution :

    The value of equilibrium constant is not affected by catalyst. A catalyst only changes the time required to achieve equilibrium. \[\therefore \] The equilibrium constant will remain same ie, \[4\times {{10}^{-4}}\].


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