Energy changes in chemical reactions (part 2)
7:46
Energy changes in chemical reactions (part 2)
2 weeks ago
Khan AcademyMahesh Shenoy
Exothermic reactions release energy, usually as heat, causing the surroundings to warm up, while endothermic reactions absorb energy from the surroundings, causing the surroundings to cool down. An exothermic reaction has a net release of energy (e.g., the burning of natural gas), and an endothermic reaction requires a net input of energy (e.g., photosynthesis). Exothermic reactions Definition: Chemical reactions that release energy into their surroundings. Energy change: The energy of the produ
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