engineering chemistry MCQ #2160

For the reaction N2O4 ⇌ 2NO2, if the degree of dissociation is α, what is the equilibrium constant Kp?

engineering chemistry MCQ #2160

  1. Question 1

    Q1. For the reaction N2O4 ⇌ 2NO2, if the degree of dissociation is α, what is the equilibrium constant Kp?

    • A) Kp = 4α²/(1-α²)P
    • B) Kp = 4α²/(1-α)P
    • C) Kp = α²/(1-α)P
    • D) Kp = 4α/(1-α)P

    Answer: Kp = 4α²/(1-α²)P

    Explanation: Kp = (P(NO2))²/P(N2O4), using partial pressures in terms of α and P, we get Kp = 4α²P/(1-α²).