Exothermic vs Endothermic Practice

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases energy in the form of heat or light to its surroundings.

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs energy from its surroundings, usually in the form of heat.

Front

Example of an exothermic process: Formation of Snowflakes

Back

The formation of snowflakes is an exothermic process because it releases heat as water vapor condenses and freezes.

Front

Example of an exothermic process: Burning a Marshmallow

Back

Burning a marshmallow is an exothermic reaction as it releases heat and light during combustion.

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Example of an endothermic process: Evaporation

Back

Evaporation is an endothermic process because it requires heat energy to convert liquid into vapor.

Front

Example of an endothermic process: Baking Bread

Back

Baking bread is an endothermic process as it requires heat to activate yeast and cook the dough.

Front

What happens to temperature in an exothermic reaction?

Back

In an exothermic reaction, the temperature of the surroundings increases as heat is released.

Front

What happens to temperature in an endothermic reaction?

Back

In an endothermic reaction, the temperature of the surroundings decreases as heat is absorbed.

Front

What is a common use of an endothermic reaction in everyday life?

Back

Cold packs used for injuries are an example of endothermic reactions, as they absorb heat to provide a cooling effect.

Front

How can you identify an exothermic reaction?

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Exothermic reactions can often be identified by a temperature increase and the release of light or sound.