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内能

出自维基百科,自由个百科全书

热力学里,内能(internal energy)是热力学系统内两个具状态变数个基本状态函数个其中一个函数。内能是指系统所含有个能量,但弗包含因外部力场而产生个系统整体个动能搭势能。内能会因系统能量个增损而随之改变。

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