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JAMB Chemistry 2005 Question 43

Question 43

Rates of Reaction

In the diagram above (a graph of ln k against 1/T showing lines X, Y, Z and R), which of the curves illustrates Arrhenius' law?

Diagram for this question
  1. A.Y
  2. B.Z
  3. C.R
  4. D.X
Show the answer and explanation

Answer: D (X)

Explanation

Arrhenius: ln k = ln A − Ea/(RT). A plot of ln k against 1/T is a straight line with a negative slope, which is line X.