Phase Changes: Exothermic or Endothermic?
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- เผยแพร่เมื่อ 9 เม.ย. 2012
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We will learn which phase changes and exothermic, and which are endothermic. It all has to do with the direction of heat movement, or heat transfer. If heat transfers from the surroundings into a system, it is an endothermic process. If it transfers from a system into the surroundings, it is an exothermic process.
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This probably is the best video that simplifies the concept of Endothermic and Exothermic reaction. Really well explained!!
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I always think of it as a plate of hot food. When you see the plate of food steaming, you know it's eventually going to cool. So even though the food is hot, it's actually slowly cooling down which is an example of an exothermic change.
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