Essential Chemistry for IGCSE - Chemical Changes (Section 4 - No. 50)
In an energy level diagram, which of the following would indicate an exothermic reaction?
The products are at a higher energy level than the reactants.
The products are at a lower energy level than the reactants.
The reactants and products are at the same energy level.
There is no energy difference between the reactants and products.
Explanation
Exothermic reactions release energy, therefore products have lower energy.
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