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JEE Main & Advanced Chemistry Equilibrium / साम्यावस्था Question Bank Law of equilibrium and Equilibrium constant

  • question_answer
    Partial pressures of A, B, C and D on the basis of gaseous system \[A+2B\] ⇌ \[C+3D\] are A = 0.20; B = 0.10; C = 0.30 and D = 0.50 atm. The numerical value of equilibrium constant is                                            [CPMT 1987]

    A)                 11.25    

    B)                 18.75

    C)                 5             

    D)                 3.75

    Correct Answer: B

    Solution :

           A + 2B ⇌C + 3D                                 \[K=\frac{[pC]\,\,{{[pD]}^{3}}}{[pA]\,\,{{[pB]}^{2}}}=\frac{0.30\times 0.50\times 0.50\times 0.50}{0.20\times 0.10\times 0.10}=18.75\]


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