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等温变化内能变化吗
更新时间: 2021-03-24 16:20:23  

1、温度不变,内能不变化。

2、如果压缩理想气体,但是温度不变,体积发生变化,压强也变化,外界对理想气体做功,有热力学第一定律得ΔE=W+Q,温度不变内能E不变,外界对理想气体做功,W>0,所以Q

关键词: 等温 变化 内能

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