JEE Main & Advanced Chemistry Equilibrium / साम्यावस्था Question Bank Kp and Kc Relationship and Characteristics of K

  • question_answer
    If the equilibrium constant of the reaction \[2HI\] ⇌ \[{{H}_{2}}+{{I}_{2}}\] is 0.25, then the equilibrium constant of the reaction \[{{H}_{2}}+{{I}_{2}}\]⇌ \[2HI\] would be          [MP PMT 1989, 95]

    A)                 1.0         

    B)                 2.0

    C)                 3.0         

    D)                 4.0

    Correct Answer: D

    Solution :

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


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