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NEET Sample Paper NEET Sample Test Paper-71

  • question_answer
    If the equilibrium constant of the reaction \[2HI\rightleftharpoons {{H}_{2}}+{{I}_{2}}\] is 0.25, then the equilibrium constant of the reaction \[{{H}_{2}}+{{I}_{2}}\rightleftharpoons 2HI\] would be

    A) 1.0                               

    B) 2.0

    C) 3.0                   

    D) 4.0

    Correct Answer: D

    Solution :

    \[{{K}_{1}}\] for reaction \[2HI\,\,\rightleftharpoons \,\,{{H}_{2}}\,\,+\,\,{{I}_{2}}\] is 0.25 and \[{{K}_{2}}\] for reaction \[{{H}_{2}}+{{I}_{2}}\rightleftharpoons 2HI\] will be \[{{K}_{2}}=\frac{1}{{{K}_{1}}}=\frac{1}{0.25}=4\] Because IInd reaction is the reverse of Ist.


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