Endothermic and Exothermic

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 in an exothermic reaction?

Back

The temperature of the surroundings increases.

Front

What happens to temperature in an endothermic reaction?

Back

The temperature of the surroundings decreases.

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 is the role of heat in an endothermic reaction?

Back

Heat is taken in from the surroundings.

Front

What is the role of heat in an exothermic reaction?

Back

Heat is released into the surroundings.

Front

How can you identify an exothermic reaction in a lab?

Back

By measuring a rise in temperature during the reaction.

Front

How can you identify an endothermic reaction in a lab?

Back

By measuring a drop in temperature during the reaction.