Endothermic and Exothermic Reactions

Exothermic Chemical reaction releasing energy, increasing temperature of surroundings.

Endothermic Chemical reaction absorbing energy, decreasing temperature of surroundings.

Exothermic

Energy Products have less energy than reactants, releasing extra energy into surroundings.

Endothermic

Energy Products have more energy than reactants, absorbing extra energy from surroundings.

Exothermic Reaction Examples Examples: Combustion, body converting food to energy, rusting of iron.

Endothermic Reaction Examples Examples: Cooking an egg, baking bread, photosynthesis.

Exothermic

Bonds New bonds are formed, releasing energy in exothermic reactions.

Endothermic

Bonds Bonds are broken, requiring energy absorption in endothermic reactions.

Exothermic

Energy Level Diagram Helps visualize energy changes in exothermic reactions.

Endothermic

Energy Level Diagram Aids in understanding energy changes in endothermic reactions.

Exothermic

'Exo' & 'Thermic' 'Exo' means 'releases' and 'thermic' means 'heat' in exothermic reactions.

Endothermic

'Endo' & 'Thermic' 'Endo' means 'within' and 'thermic' means 'heat' in endothermic reactions.

Exothermic

Energy Types Energy released in exothermic reactions can be heat, light, or sound.

Endothermic

Cooking Many cooking processes are endothermic, requiring heat for reactions to start.

Exothermic

Surroundings Surroundings get hotter in exothermic reactions due to energy release.