Endothermic vs Exothermic

Front

What is an exothermic reaction?

Back

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

Front

What is an endothermic reaction?

Back

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

Front

Give an example of an exothermic reaction.

Back

Combustion of fuels, such as burning wood or fireworks.

Front

Give an example of an endothermic reaction.

Back

Photosynthesis in plants, where sunlight is absorbed.

Front

What happens to energy in an exothermic reaction?

Back

Energy is released, usually in the form of heat.

Front

What happens to energy in an endothermic reaction?

Back

Energy is absorbed from the surroundings.

Front

How can you identify an exothermic reaction?

Back

You can identify it by a temperature increase in the surroundings.

Front

How can you identify an endothermic reaction?

Back

You can identify it by a temperature decrease in the surroundings.

Front

What is the role of heat in an exothermic reaction?

Back

Heat is a product of the reaction.

Front

What is the role of heat in an endothermic reaction?

Back

Heat is a reactant in the reaction.