energy changes

Cards (6)

  • exothermic reaction
    • transfer energy from reacting molecules to the surroundings, temperature increases in its surroundings
  • reaction profile 

    exothermic
  • endothermic reactions
    • take in energy from surroundings, temperature in their surroundings decrease
  • reaction profile
    endothermic
  • both, energy rises to a peak (activation energy)
    • reactions only occur when the particles collide with each other with sufficient energy
    • minimum amount of energy that particles must have is called the activation energy
  • breaking a chemical bond is endothermic and making bonds release energy