passwella.
Menu

JAMB Chemistry 1995 Question 33

Question 33

Rates of Reaction

Use the diagram above. It can be deduced that the rate of the reaction

Diagram for this question
  1. A.for path I is higher than path II
  2. B.for path II is higher than path I
  3. C.is the same for both paths at all temperatures
  4. D.depends on the values of both x and y at all pressures
Show the answer and explanation

Answer: B (for path II is higher than path I)

Explanation

Path II has a lower energy barrier (it is the catalysed path). A lower activation energy means more molecules have enough energy to react, so the reaction is faster.