Answer: Shift equilibrium right.
- A Shift equilibrium left
- B Shift equilibrium right
- C Have no effect
- D Stop the reaction
Correct answer: B. Shift equilibrium right
Explanation: Increasing pressure favours the side with fewer moles of gas. 4 moles → 2 moles, so equilibrium shifts right.
As the reaction proceeds, reactant concentration falls and product concentration rises until both level off at equilibrium.
Concept context
When forward and reverse reaction rates are equal, equilibrium is reached. Learn about Kc, Kp, Le Chatelier's principle, and acid-base equilibria, including pH, buffer solutions, and solubility product.