Answer: Equal to reverse.
- A Greater than reverse
- B Less than reverse
- C Equal to reverse
- D Zero
Correct answer: C. Equal to reverse
Explanation: At equilibrium, forward and reverse reaction rates are equal, so concentrations remain constant.
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.