Endothermic Vs. Exothermic

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

What happens to the temperature of reactants in an endothermic reaction?

Back

The temperature of the products is typically lower than that of the reactants.

Front

What is an exothermic reaction?

Back

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

Front

How can you identify an exothermic reaction based on bond energy?

Back

If the energy required to break the bonds is less than the energy released by forming new bonds, the reaction is exothermic.

Front

What is the main difference between endothermic and exothermic reactions?

Back

Endothermic reactions absorb energy, while exothermic reactions release energy.

Front

What is an example of an endothermic reaction?

Back

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

Front

What is an example of an exothermic reaction?

Back

Combustion of fuels, such as burning wood or gasoline, is an example of an exothermic reaction.

Front

What does a graph of an exothermic reaction look like?

Back

A graph of an exothermic reaction shows a decrease in energy as the reaction progresses, indicating energy release.

Front

What does a graph of an endothermic reaction look like?

Back

A graph of an endothermic reaction shows an increase in energy as the reaction progresses, indicating energy absorption.

Front

What is the role of activation energy in chemical reactions?

Back

Activation energy is the minimum energy required to initiate a chemical reaction.