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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 24

  • question_answer
    At constant temperature, the equilibrium constant \[({{K}_{p}})\]for the decomposition reaction,\[{{N}_{2}}{{O}_{4}}2N{{O}_{2}}\]is expressed by \[{{K}_{p}}=4{{x}^{2}}P/(1-{{x}^{2}})\], where P = pressure and x = extent of decomposition. Which of the following statements is true?

    A) \[{{K}_{p}}\]increases with increase in P.

    B) \[{{K}_{p}}\]increases with increase in x.

    C) \[{{K}_{p}}\]increases with decrease in x.

    D) \[{{K}_{p}}\]remains constant with change in P and x.

    Correct Answer: D

    Solution :

    [d]: The equilibrium constant does not change at all with change in concentration, volume, pressure and presence of a catalyst. It changes only with change in temperature of the system.


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