BCECE Medical BCECE Medical Solved Papers-2001

  • question_answer
    4 moles of A are mixed with 4 moles of B and 2 moles of C are formed at equilibrium according to following reaction, \[A+BC+D\]. The value of equilibrium constant is :

    A)  1                

    B)  4

    C)  \[\frac{1}{4}\]               

    D)  \[\frac{1}{2}\]

    Correct Answer: A

    Solution :

    Key Idea, \[{{K}_{c}}=\frac{[C]\,\,[D]}{[A]\,\,[B]}\] where \[{{K}_{c}}=\] equilibrium constant.                 \[A+BC+D\] Initial moles      4      4         0   0 Moles after   (4 - 2)  (4 - 2)   2  2 reaction .    = 2       = 2 Let volume of container = V L \[\therefore \] \[{{K}_{c}}=\frac{(2/V)\times (2/V)}{(2/V)\times 2/V}\]


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