At Home: Hang Photos or Paintings. Take 30 minutes to hang up those paintings or photos you've got in the back of your closet or around the house. You'll give your home an inexpensive mini-makeover and burn off an extra 107 calories in the process.
An endothermic reaction or process takes place when the system absorbs heat energy from the surrounding environment. In an exothermic reaction or process, energy is released into the environment, usually in the form of heat, but also electricity, sound, or light.
These are reactions that take in energy from the surroundings. 1  The energy is usually transferred as heat energy, causing the reaction mixture and its surroundings to get colder. The temperature decrease can also be detected using a thermometer. Some examples of endothermic reactions are: 2  electrolysis.