8
QuizMultiple Choice

Reaction Pathways

Question 8 • Chemistry - SC3210 A-CR

Which statement best describes how to read a reaction pathway graph for an endothermic reaction?

Answer
A
Reactants absorb a minimum amount of energy and then release a larger amount of energy as products form.
B
Reactants release a minimum amount of energy and then absorb a larger amount of energy as products form.
C
Reactants absorb a minimum amount of energy and then release a smaller amount of energy as products form.
D
Reactants release a minimum amount of energy and then absorb a smaller amount of energy as products form.

Explanation

In an endothermic reaction, the products have more energy than the reactants, so the reaction takes in energy overall. The reactants first absorb energy to reach the peak of the pathway; as products form, some energy is released, but less than was absorbed. This matches “Reactants absorb a minimum amount of energy and then release a smaller amount of energy as products form.”

AI-written and checked against the verified answer.

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