How to boil eggs without fire and electricity
They say that every chemist should be just as good at cooking as they are at conducting experiments. After all, chemists pay a lot of attention to details, and this trait also comes in handy in the kitchen. In this hot and interesting experiment, we will encounter the concept of the exothermic reaction.
Reagents and equipment:
- potassium oxide;
- a heat-resistant chemical vessel;
- a lid.
In a heat-resistant glass, sprinkle a layer of potassium oxide of a thickness of 2-3 cm, place eggs on top and then add another layer of potassium oxide of a thickness of 5 cm. Add water and cover with a lid.
Exothermic reactions are reactions which take place with release of heat into the surrounding environment. What can these facts tell us? With the formation of new chemical bonds in reaction products, more energy is released than is required for the breakdown of chemical bonds in reagents. The excess of energy is released in the form of heat, and sometimes light as well. One such reaction is the dissolution of potassium oxide in water – so much heat is released that the liquid boils and the eggs are cooked.
СаО + Н₂О = Са(ОН)₂ + Q
When conducting the experiment, wear gloves and protective glasses. The vessel in which the reaction takes place should be covered with a lid to avoid splashes of boiling water and to stop potassium hydroxide from getting on the skin or in the eyes. Don’t eat the cooked eggs.
Warning! Only under professional supervision.