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JEE Main & Advanced Chemistry Equilibrium / साम्यावस्था Question Bank Mock Test - Chemical Equilibrium

  • question_answer
    If in the reaction \[{{N}_{2}}{{O}_{4}}=2N{{O}_{2,}}\,a\]is that part of \[{{N}_{2}}{{O}_{4}}\]which dissociates, then the number of moles at equilibrium will be

    A) 3         

    B) 1

    C) \[{{(1-a)}^{2}}\]

    D) \[{{(1+a)}^{2}}\]

    Correct Answer: D

    Solution :

    [d] \[\underset{\underset{(1-\alpha )}{\mathop{1}}\,}{\mathop{{{N}_{2}}{{O}_{4}}}}\,\rightleftharpoons \underset{\underset{2\alpha }{\mathop{0}}\,}{\mathop{2N{{O}_{2}}}}\,\] Total mole at equilibrium \[=(1-\alpha )+2a=1+\alpha \]


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