Cooking an egg is an exothermic process because it releases heat energy into the surroundings. This can be observed by feeling the warmth of the pan when the egg is being cooked. Additionally, the chemical reactions occurring in the egg during cooking also release energy in the form of heat, confirming its exothermic nature.
The formation of snow is an endothermic process because it absorbs heat energy from its surroundings. Snow forms when water vapor in the air undergoes deposition, which is the direct transition from gas to solid. This phase change requires the vapor to lose energy and cool down, extracting heat from the surrounding environment.
Cooking an egg is one type of process, while the formation of snow is another. In three to five sentences, identify each as exothermic or endothermic and explain how you know. (4 points)
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