PD1- MRMS MP2: 2025: Exothermic/Endothermic Flashcard

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases energy in the form of heat, causing the temperature of the surroundings to increase.

Front

What is an endothermic reaction?

Back

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

Front

What happens to energy during an exothermic reaction?

Back

Energy is released into the surroundings.

Front

What happens to energy during an endothermic reaction?

Back

Energy is absorbed from the surroundings.

Front

Give an example of an exothermic reaction.

Back

Combustion of fuels, such as burning wood or gasoline.

Front

Give an example of an endothermic reaction.

Back

Photosynthesis in plants, where sunlight is absorbed to convert carbon dioxide and water into glucose.

Front

What is the significance of heat release in exothermic reactions?

Back

Heat release indicates that the reaction can increase the temperature of the surroundings, which can be useful in various applications.

Front

What is the significance of heat absorption in endothermic reactions?

Back

Heat absorption indicates that the reaction requires energy input, which can be important in processes like cooking or chemical synthesis.

Front

How can you identify an exothermic reaction?

Back

An exothermic reaction can be identified by a temperature increase in the surroundings or the release of light or sound.

Front

How can you identify an endothermic reaction?

Back

An endothermic reaction can be identified by a temperature decrease in the surroundings or the need for heat input.