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

  • question_answer
    In which of the following equilibria, the value of \[{{K}_{p}}\] is less than \[{{K}_{c}}\]                                     [MP PMT 1993]

    A)                 \[{{H}_{2}}+{{I}_{2}}\]⇌ \[2HI\]

    B)                 \[{{N}_{2}}+3{{H}_{2}}\]⇌\[2N{{H}_{3}}\]

    C)                 \[{{N}_{2}}+{{O}_{2}}\]⇌ \[2NO\]

    D)                 \[CO+{{H}_{2}}O\]⇌ \[C{{O}_{2}}+{{H}_{2}}\]

    Correct Answer: B

    Solution :

              \[{{K}_{p}}={{K}_{c}}{{(RT)}^{\Delta n}}\]; When \[\Delta n=2-(2+1)=-1\], i.e. negative, \[{{K}_{p}}<{{K}_{c}}\].


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