Answer :
Final answer:
The best example of an exothermic reaction that releases energy by conduction is chemical handwarmers. They utilize chemical reactions to generate heat that can be felt directly, demonstrating energy transfer effectively. Fireworks are also exothermic, but they do not focus on conductive heat transfer like handwarmers do.
Explanation:
Identifying the Best Example of an Exothermic Reaction
To determine which option is the best example of an exothermic reaction that releases energy by conduction, we should first understand the meaning of an exothermic reaction. An exothermic reaction occurs when a chemical reaction releases energy, typically in the form of heat. The four options given are:
- Chemical handwarmers
- Fireworks
- Water warmed in a microwave
- Air conditioner cooling the air in your home
1. Chemical handwarmers usually utilize a chemical reaction (commonly oxidation) to generate heat, making them a clear example of an exothermic reaction.
2. Fireworks also release energy in the form of heat and light through rapid chemical reactions, thus being exothermic as well.
3. Water warmed in a microwave involves electromagnetic radiation heating water, which is not a chemical reaction. It does not fit the criteria of an exothermic reaction.
4. An air conditioner cooling the air is a process that absorbs heat from the inside and releases it outside, which is endothermic in nature.
Among these choices, while both chemical handwarmers and fireworks are exothermic, the best example that specifically emphasizes energy release through conduction is the chemical handwarmers. This is because they are designed to produce heat directly through a chemical process that is easy to demonstrate and feel as heat transfers by conduction to our hands.
Learn more about exothermic reactions here:
https://brainly.com/question/49658260
