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AP Biology/Unit 3: Cellular Energetics
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Reaction Classification by Energy Change

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Consider a chemical reaction in which the reactants have an energy of 20 kJ/mol20\,kJ/mol and the products have an energy of 40 kJ/mol40\,kJ/mol. Which of the following terms correctly classifies this reaction?

Parameter Energy (kJ/mol)
Reactants 20
Products 40
A

Catalyzed reaction

B

None of the above

C

Endergonic reaction

D

Exergonic reaction

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