Endothermic and exothermic Reactions Endothermic and exothermic

Endothermic Reactions An endothermic reaction is accompanied by or requires the absorption of heat. Endothermic reactions take in energy from another source to provide the activation energy required for a reaction to occur. Examples of endothermic reactions: Photosynthesis Making ice cream Baking bread Cooking an egg Melting ice

Endothermic Reaction Images

Exothermic Reactions An exothermic reaction is accompanied by the release of heat. Exothermic reactions release heat due to there being excess energy in the reaction. Examples of exothermic reactions: Mixing water and strong acids Making ice cubes Nuclear fission Burning sugar A candle flame Fire

Exothermic Reaction Images

Comparing Exothermic and Endothermic Reactions Releases energy Reactants have more stored energy Products have less stored energy Absorbs energy Reactants have less stored energy Products have more stored energy

Comparing Exothermic and Endothermic Reactions