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如何求气体内能增量
更新时间: 2020-09-24 00:00:00  

从两个角度,气体的温度和体积。

内能指分子动能和分子势能之和:

分子动能表现在气体温度上,温度改变量与气体质量、气体比热值的乘积就是动能改变量;

分子势能表现在气体体积上,体积改变量与压强的乘积就是气体势能的改变量;

两者注意正负号,相加就是气体内能的改变量。

关键词: 如何 气体 内能 增量

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