SAT Chemistry

Category - Multiple Choice

Which of the following factors does NOT affect the rate of a chemical reaction?
  1. The presence of a catalyst
  2. Temperature
  3. Concentration of reactants
  4. Surface area of reactants
  5. Type of vessel holding the reactants
Explanation
Answer: Type of vessel holding the reactants

Chemical reactions occur when colliding molecules have the correct orientation and energy. The type of vessel holding the reactants does not affect either of these factors, and thus does not affect the rate of a chemical reaction.
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