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熱量
Also known as amount of heat, heat energy, quantity of heat
熱力學系統之中或之間轉移的能量
AI overview
Heat is energy that flows between objects or systems when there's a temperature difference between them, crossing from the warmer side to the cooler side. Understanding heat matters because it explains how energy moves in the physical world and is fundamental to how machines, weather systems, and countless natural processes work.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Physical quantity.name
- Heat
- Physical quantity.image
- Glowing metal.jpg
- Physical quantity.caption
- A glowing-hot metal bar showing incandescence, the emission of light due to its temperature, is often recognized as a source of heat.
- Physical quantity.unit
- joule
- Physical quantity.otherunits
- British thermal unit, calorie
- Physical quantity.symbols
- Q
- Physical quantity.baseunits
- kg⋅m2⋅s−2
- Physical quantity.dimension
- wikidata
via Wikipedia infobox
Wikidata facts
- Image
- Hot metalwork.jpg
Show 1 more fact
Article · 中文
熱量（heat）或熱，是指由于温度差而转移（传递）的能量，国际单位制用焦耳（J）。 在热力学上，“热”是以非或传质机制，传入或传出热力学系统的转移能量；而该转移或传递的过程称为热交换（heat exchange）或热传递（heat transfer）。借“传热”来“传递能量”，并不需物体的宏观位移。 在温度不同的物体之间存在温差，热量总是由高温物体向低温物体传递；即使在等温过程中，物体之间的温度也不断出现微小差别，通过热量传递不断达到新的平衡。在微观上，某热力学系统与外界之间在温差的推动下，即可通过微观粒子的方式传递的能量。
Abstract from DBpedia / Wikipedia · CC BY-SA