JAMB Chemistry 2011 Objective — Question 27

Question 27 of 49 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2011 Objective paper, with the correct answer and a full explanation.

[Diagram: rate of reaction decreasing over reaction time] The diagram above best illustrates the effect of decrease in

• A. A. pressure
• B. B. surface area
• C. C. temperature
• D. D. concentrationCorrect

Explanation

The graph represents the effect of a decrease in the concentration of reactants on reaction rate. As the concentration of reactant decreases, the reaction rate decreases as well.

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