Given the characteristics of each process, we can confirm that cooking an egg is an endothermic process, whilst the formation of snow is exothermic.
Exothermic and endothermic processes refer to the way in which each reaction interacts with the environment. To be specific, whether or not the reaction taking place releases energy into the environment or absorbs energy from it. The energy can be in the form of:
- Heat
- Sound
- Light
- Electricity
though the most common when using these definitions is heat.
The formation of snow is an exothermic process, it releases heat. Snow forms when ice crystals stick together and become heavy enough to fall to the ground. However, in order for these ice crystals to form, the system would have had to release its internal heat into the environment, which is what happens when its surroundings are colder than the internal temperatures.
Meanwhile, the process of cooking an egg is endothermic. This means that the egg absorbs heat from its surroundings. The transfer of heat is always in order to create a balance of temperatures. The egg is colder than the boiling water in which it is cooked, therefore it will absorb heat from the water in an endothermic process.
The attached image will serve as a common example of an exothermic reaction.
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