EXOTHERMIC AND ENDOTHERMIC REACTIONS

Front

Define Endothermic Reaction

Back

A reaction in which energy is absorbed; ΔH is positive; examples include going from Solid to Liquid and Liquid to Gas.

Front

What instrument is used to detect an endothermic or exothermic reaction?

Back

Thermometer.

Front

What happens to temperature in an Exothermic Reaction?

Back

The temperature increases.

Front

In an Exothermic Reaction, heat is...

Back

Given out or released.

Front

Examples of Endothermic Processes?

Back

Baking bread and cooking an egg.

Front

Define Exothermic Reaction

Back

A reaction in which energy is released; ΔH is negative; examples include combustion reactions.

Front

What is ΔH?

Back

The change in enthalpy, which indicates the heat content of a system.

Front

What is the difference between Endothermic and Exothermic reactions?

Back

Endothermic reactions absorb heat, while Exothermic reactions release heat.

Front

What is an example of an Exothermic reaction?

Back

Combustion of fuels, such as burning wood or gasoline.

Front

What is the role of a catalyst in chemical reactions?

Back

A catalyst speeds up a reaction without being consumed, affecting the activation energy.