engineering chemistry MCQ #2150

For the reaction N2 + 3H2 ⇌ 2NH3, if the initial concentrations are 1 M each, what is the equilibrium constant expression?

engineering chemistry MCQ #2150

  1. Question 1

    Q1. For the reaction N2 + 3H2 ⇌ 2NH3, if the initial concentrations are 1 M each, what is the equilibrium constant expression?

    • A) Kc = [NH3]² / [N2] [H2]³
    • B) Kc = [N2] [H2]³ / [NH3]²
    • C) Kc = [NH3] / [N2] [H2]
    • D) Kc = [N2] [H2] / [NH3]

    Answer: Kc = [NH3]² / [N2] [H2]³

    Explanation: The law of mass action states that Kc = [products] / [reactants] with stoichiometric coefficients as powers.