JAMB Mathematics 2022 Objective — Question 22

Question 22 of 41 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2022 Objective paper, with the correct answer and a full explanation.

Y in the energy diagram (Y = enthalpy change of reaction) represents

A. Free energy
B. Enthalpy changeCorrect
C. Activation energy
D. Activated complex energy

Explanation

In a reaction energy profile: X = activation energy (energy barrier), Y = enthalpy change (ΔH, overall energy difference), Z = transition state/activated complex.

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