Question

Which result occurs during an exothermic reaction?

A. Light is released into the environment, while heat is absorbed.

B. Heat is released into the environment, while light is absorbed.

C. Light and heat are absorbed from the environment.

D. Light and heat are released into the environment.

Answer 1

In exothermic reactions, heat and light are released to the surrounding environment. On the other hand, in an endothermic reaction, heat is required and therefore it can be considered as a reactant.

• In exothermic reactions, light and heat are released into the environment (Option D).

• Exothermic reactions release energy in the form of heat or light.

• Combustion reactions are generally exothermic reactions.

• After an exothermic reaction takes place it is possible to observe that the energy of the products of the reaction is lesser than the energy of the reactants.

• The energy released in exothermic reactions is evidenced by the increase in temperature of the reaction.

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