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

  • question_answer
    Some solid \[N{{H}_{4}}HS\] is placed in a flask containing 0.5 atm of \[N{{H}_{3}}\], what would be pressures of \[N{{H}_{3}}\] and \[{{H}_{2}}S\] when equilibrium is reached \[N{{H}_{4}}H{{S}_{(g)}}\] ⇌ \[N{{H}_{3(g)}}+{{H}_{2}}{{S}_{(g)}}\], \[{{K}_{p}}=0.11\]            [UPSEAT 2001]

    A)                 6.65 atm             

    B)                         0.665 atm

    C)                 0.0665 atm         

    D)                 66.5 atm

    Correct Answer: B

    Solution :

               \[{{K}_{p}}=\frac{{{p}^{2}}}{4};\,\,0.11=\frac{{{p}^{2}}}{4}\Rightarrow {{p}^{2}}=0.44\]                                 or \[p=\sqrt{0.44}=0.66444\approx \,0.665\,atm\]


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