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What can a change in temperature during a chemical reaction indicate?

Answer and explanation

Correct answer: Energy change

A rise or fall in temperature indicates an energy change in the reaction. In an exothermic reaction, heat is released, so the temperature may rise; in an endothermic reaction, heat is absorbed, so the temperature may fall. A colour change can also be evidence of a chemical reaction, but a temperature change specifically indicates the release or absorption of heat, that is, an energy change.

Related tags

Class 10 ScienceChemical ReactionsTemperature ChangeEnergy ChangeExothermic ReactionsEndothermic Reactions

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