Exothermic & Endothermic Reactions

Front

What is an exothermic reaction?

Back

A chemical reaction that releases energy in the form of heat, causing the surrounding temperature to increase.

Front

What is an endothermic reaction?

Back

A chemical reaction that absorbs energy from its surroundings, resulting in a decrease in temperature.

Front

What is photosynthesis classified as?

Back

Endothermic reaction.

Front

If a reaction's initial temperature is 20°C and final temperature is 45°C, what type of reaction is it?

Back

Exothermic reaction.

Front

What happens to the surrounding temperature during an exothermic reaction?

Back

The surrounding temperature gets warmer.

Front

What happens to the temperature during an endothermic reaction?

Back

The temperature decreases.

Front

What instrument is used to measure temperature changes in chemical reactions?

Back

Thermometer.

Front

What is the effect of an exothermic reaction on the temperature of the system?

Back

The temperature increases.

Front

What is the effect of an endothermic reaction on the temperature of the system?

Back

The temperature decreases.

Front

Give an example of an exothermic reaction.

Back

Combustion of fuels, such as burning wood or gasoline.