因体积的变化而引起的系统与环境间交换的功称为体积功, 功不是状态函数, 是跟途径有关的量, 相同的始态、终态间途径不同体积功的计算公式不同, 所以体积功的计算公式出现多种形式。
... Volumenvolume体积 Volumenarbeitvolume work体积功 Volumenbruchvolume fraction体积比 ...
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结合第一和第二定律,对于压强体积功我们可以这样写。
And we combine this with first law, which for the case of pressure volume changes we write as this.
由于光是一种有序的能量,因而光是一种非体积功w '。
Because light is a form of orderly energy, so it is a non-PV work (w ').
粘度增大,单位体积功增大时泛能式桨微观混合效果优于二叶平桨。
In higher viscosity and higher power dissipation rate per unit mass, micromixing ability of full-zone is better than paddle impeller.
And we combine this with first law, which for the case of pressure volume changes we write as this.
结合第一和第二定律,对于压强体积功我们可以这样写。
So for the reversible process, the work done is the integral under the pressure volume state function, the function of state.
对可逆过程,做的功,是压强体积态函数曲线下,的积分面积。
Because we did work at constant pressure, and so it's just volume difference times pressure.
因为是在恒压下做功,所以功就等于体积变化乘以压力。
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