Endothermic vs. Exothermic

Front

What is an endothermic reaction?

Back

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

Front

What is an exothermic reaction?

Back

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

Front

Give an example of an endothermic process.

Back

Photosynthesis is an example of an endothermic process, where plants absorb sunlight to convert carbon dioxide and water into glucose.

Front

Give an example of an exothermic process.

Back

Cellular respiration is an example of an exothermic process, where glucose is broken down to release energy.

Front

What happens to energy in an endothermic reaction?

Back

In an endothermic reaction, energy is absorbed from the surroundings.

Front

What happens to energy in an exothermic reaction?

Back

In an exothermic reaction, energy is released into the surroundings.

Front

How does temperature change in an endothermic reaction?

Back

The temperature of the surroundings decreases during an endothermic reaction due to energy absorption.

Front

How does temperature change in an exothermic reaction?

Back

The temperature of the surroundings increases during an exothermic reaction due to energy release.

Front

What is the role of energy in chemical reactions?

Back

Energy is involved in breaking and forming bonds during chemical reactions, influencing whether the reaction is endothermic or exothermic.

Front

What is the significance of activation energy in reactions?

Back

Activation energy is the minimum energy required to initiate a chemical reaction, affecting both endothermic and exothermic processes.