JAMB Chemistry 2014 Objective — Question 25

Question 25 of 50 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2014 Objective paper, with the correct answer and a full explanation.

The diagram represents an energy profile diagram for the reaction A+B→C+D. Z in the diagram above represents

• A. entropy of reaction
• B. heat of reaction
• C. activation energyCorrect
• D. free energy

Explanation

Z in the diagram represents the activation energy, the minimum energy barrier needed for reactants to be converted to products.

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