engineering chemistry MCQ #2145

The equilibrium constant for the reaction 2NO ⇌ N2 + O2 is 2.5 × 10³ at 300K. What is the value of Kc for N2 + O2 ⇌ 2NO?

engineering chemistry MCQ #2145

  1. Question 1

    Q1. The equilibrium constant for the reaction 2NO ⇌ N2 + O2 is 2.5 × 10³ at 300K. What is the value of Kc for N2 + O2 ⇌ 2NO?

    • A) 1/(2.5 × 10³)
    • B) 2.5 × 10³
    • C) √(2.5 × 10³)
    • D) 1/√(2.5 × 10³)

    Answer: 1/(2.5 × 10³)

    Explanation: When the reaction is reversed, Kc becomes 1/Kc, so Kc = 1/(2.5 × 10³)