Endothermic and Exothermic Reactions

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs heat from its surroundings, resulting in a decrease in temperature.

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases heat to its surroundings, resulting in an increase in temperature.

Front

What happens to temperature during an endothermic reaction?

Back

The temperature decreases as heat is absorbed from the surroundings.

Front

What happens to temperature during an exothermic reaction?

Back

The temperature increases as heat is released to the surroundings.

Front

Give an example of an endothermic reaction.

Back

Baking bread is an example of an endothermic reaction.

Front

Give an example of an exothermic reaction.

Back

Dynamite exploding is an example of an exothermic reaction.

Front

What is the role of energy in an exothermic reaction?

Back

Energy is released during an exothermic reaction.

Front

What is the role of energy in an endothermic reaction?

Back

Energy is absorbed during an endothermic reaction.

Front

What is combustion?

Back

Combustion is a chemical reaction that typically involves the burning of hydrocarbons in the presence of oxygen, resulting in an exothermic reaction.

Front

What is photosynthesis?

Back

Photosynthesis is a process used by plants to convert light energy into chemical energy, which is an endothermic reaction.