Final Answer:
The energy change occurring in the campfire is C. exothermic.
Step-by-step explanation:
When you build a campfire, heat is produced as a result of the combustion process. Combustion is an exothermic reaction, meaning it releases energy in the form of heat. In the context of the campfire, the chemical bonds of the fuel (wood, for example) break, and new bonds form in the combustion products (such as carbon dioxide and water vapor), releasing energy into the surroundings.
The term "exothermic" comes from the Greek words "exo," meaning outside, and "therme," meaning heat. In an exothermic process, heat flows out of the system, and the surroundings gain energy. In the case of a campfire, the heat generated warms the surrounding air and objects, providing light and warmth.
This exothermic energy change is a common occurrence in everyday life, and it is the reason why campfires are used for heating, cooking, and providing light in outdoor settings.
In conclusion, the energy change occurring in a campfire is correctly described as exothermic. This recognition is essential in understanding the nature of heat transfer and energy transformations associated with combustion processes. The warmth and light produced by the campfire result from the release of energy, making it a practical example of exothermic energy conversion in the natural environment.