Enthalpy

Enthalpy

Is a measure of the total heat content in a thermodynamic system.

Endothermic Reaction

A reaction in which energy is absorbed from the surroundings. Because the reaction requires a net input of energy to proceed, energy acts as a reactant rather than a product. Heat flows from the surroundings to the system and the enthalpy of the system increases.

Exothermic Reaction

Heat is given off to the surroundings, which means the total energy and enthalpy of the chemical system go down.

Exothermic Reaction

Formation of snow is an example of what reaction?

Exothermic Reaction

Burning wood is an example of what reaction?

Exothermic Reaction

Burning Candle is an example of what reaction?

Exothermic Reaction

Gas burner in used is an example of what reaction?

Endothermic Reaction

Evaporation of water is an example of what reaction?

Endothermic Reaction

Baking bread is an example of what reaction?

Endothermic Reaction

Frying eggs is an example of what reaction?

Endothermic Reaction

Photosynthesis is an example of what reaction?

Endothermic Reaction

Heat is ABSORBED by the surroundings.

Exothermic Reaction

Heat is RELEASED to the surroundings.