Endothermic Vs Exothermic Reactions

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 during an exothermic reaction?

Back

The temperature increases outside of the reaction.

Front

What happens to temperature during an endothermic reaction?

Back

The temperature decreases outside of the reaction.

Front

What is ΔH in a chemical reaction?

Back

ΔH represents the change in enthalpy (heat content) of a reaction.

Front

What is an example of an exothermic reaction?

Back

Rusting of iron nails is an example of an exothermic reaction.

Front

What is an example of an endothermic reaction?

Back

Photosynthesis is an example of an endothermic reaction, as it absorbs sunlight.

Front

How can you identify an exothermic reaction?

Back

An exothermic reaction can be identified by a release of heat, often felt as warmth.

Front

How can you identify an endothermic reaction?

Back

An endothermic reaction can be identified by a cooling effect, as it absorbs heat.

Front

What is the significance of heat in chemical reactions?

Back

Heat changes indicate whether a reaction is endothermic or exothermic, affecting energy transfer.