MDCAT Chemistry MCQ #2247

A mixture of nitrogen and hydrogen is at equilibrium forming ammonia. If helium gas is added at constant volume, what happens to the equilibrium position?

MDCAT Chemistry MCQ #2247

  1. Question 1

    Q1. A mixture of nitrogen and hydrogen is at equilibrium forming ammonia. If helium gas is added at constant volume, what happens to the equilibrium position?

    • A) The equilibrium shifts towards the product side
    • B) The equilibrium shifts towards the reactant side
    • C) The equilibrium position remains unchanged
    • D) The value of Kc increases significantly

    Answer: The equilibrium position remains unchanged

    Explanation: Adding inert gas at constant volume does not change partial pressures or concentrations. Option D is wrong because pressure increases without shifting equilibrium.