JAMB Chemistry 2008 Question 29

Question 29

Rates of Reaction

The rate of a reaction usually decreases with a decrease in the concentration of reactants because

  1. A.kinetic energy decreases
  2. B.temperature increases
  3. C.speed increases
  4. D.reactants collision decreases.
Show the answer and explanation

Answer: D (reactants collision decreases.)

Explanation

With fewer reactant particles in a given volume, they collide less often, so the reaction slows down.