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Reaction rates and equilibrium test

This 12th-grade test practices students' understanding of reaction rates and equilibrium by answering questions related to collision theory, activation energy, catalysts, and equilibrium shifts. Students analyze various scenarios and select correct options to demonstrate their comprehension.

By Edform · Chemistry · Grade 12 · Published Oct 15, 2026 · New

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Questions

  1. Which factor will increase the rate of a chemical reaction according to collision theory?
  2. Which of the following changes will shift the equilibrium of the reaction N2(g) + 3H2(g) ⇌ 2NH3(g) to the right (toward ammonia production)? Select all that apply.
  3. A catalyst increases the equilibrium constant of a reaction.
  4. What is the minimum amount of energy required for reactants to form products in a chemical reaction called?
  5. If the rate constant (k) for a reaction doubles when the temperature increases from 300 K to 310 K, by what factor does the rate of reaction change, assuming all other conditions remain the same?
  6. Which statement best describes dynamic equilibrium in a chemical reaction?
  7. Which of the following will NOT affect the position of equilibrium for a gaseous reaction? Select all that apply.
  8. Increasing the temperature of an exothermic reaction at equilibrium will shift the equilibrium toward the reactants.
  9. According to collision theory, what two conditions must be met for a reaction to occur when particles collide?
  10. Which of the following best explains why increasing the surface area of a solid reactant increases the reaction rate?

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