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

  • question_answer
    For the reaction \[PC{{l}_{3}}(g)+C{{l}_{2}}(g)\] ⇌ \[PC{{l}_{5}}(g)\]  at  \[{{250}^{o}}C\], the value of \[{{K}_{c}}\] is 26, then the value of \[{{K}_{p}}\] on the same temperature will be                  [MNR 1990; MP PET 2001]

    A)                 0.61       

    B)                 0.57

    C)                 0.83       

    D)                 0.46

    Correct Answer: A

    Solution :

           \[{{K}_{p}}={{K}_{c}}{{(RT)}^{\Delta n}}\]\[=26\,{{(0.0821\times 523)}^{-1}}=0.61\].                 \[\Delta {{n}_{g}}=1-2=-1\]


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