Exothermic and Endothermic

• What are exothermic reactions?

  • Transfers heat to the surroundings so temperature increases (e.g Combustion, oxidation or neutralisation)
  • Everyday examples : self- heating cans and hand warmers
• What are endothermic reactions?

  • Takes in heat from the surroundings so temperature decreases (E.g thermal decomposition, citric acid or sodium hydrogen carbonate)
  • Everyday examples : Sport injury packs
• This is an Endothermic reaction

  
• This is an exothermic reaction