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

  • question_answer
    What is the effect of increasing pressure on the dissociation of \[PC{{l}_{5}}\] according to the equation                 \[PC{{l}_{5(g)}}\]⇌ \[PC{{l}_{3(g)}}+C{{l}_{2(g)}}-x\ cal\]                                 [UPSEAT 2004]

    A)                 Dissociation decreases

    B)                 Dissociation increases

    C)                 Dissociation does not change

    D)                 None of these

    Correct Answer: A

    Solution :

               \[PC{{l}_{5}}(g)\] ⇌\[PC{{l}_{3}}(g)+C{{l}_{2}}(g)\]                    For this reaction \[\Delta n=2-1=1\]                                 Value of \[\Delta n\] is positive so the dissociation of \[PC{{l}_{5}}\] take forward by decrease in pressure & by increase in pressure the dissociation of \[PC{{l}_{5}}\] decrease.


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