Endothermic vs. Exothermic

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs heat (energy) from its surroundings.

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases heat (energy) to its surroundings.

Front

Give an example of an endothermic reaction.

Back

Cooking eggs in a skillet is an example of an endothermic reaction because the eggs absorb heat.

Front

Give an example of an exothermic reaction.

Back

Lighting a match is an example of an exothermic reaction because it produces heat as the match burns.

Front

What instrument is used to measure temperature changes in reactions?

Back

A thermometer is used to detect temperature changes in endothermic or exothermic reactions.

Front

During which type of reaction is energy absorbed?

Back

Energy is absorbed during an endothermic reaction.

Front

During which type of reaction is energy released?

Back

Energy is released during an exothermic reaction.

Front

What happens to water during evaporation?

Back

During evaporation, water absorbs heat to break bonds and form water vapor, making it an endothermic process.

Front

What is the role of heat in an endothermic reaction?

Back

In an endothermic reaction, heat is absorbed from the surroundings to facilitate the reaction.

Front

What is the role of heat in an exothermic reaction?

Back

In an exothermic reaction, heat is released into the surroundings as a product of the reaction.