• In other words, if we don't have to worry about entropy or volume equilibrium is achieved when energy is at a minimum.

    换句话说,如果我们不担心熵,和体积的平衡,那么能量就得是最小的。

    麻省理工公开课 - 热力学与动力学课程节选

  • Higher entropy basically because you're forming molecules of gas where there weren't any before, and there's more disorder in the gas phase than in the liquid. That is, the gas phase molecules have more freedom to roam.

    高的熵是因为,我们产生了以前不存在的气体分子,气体的无序程度比液体大,换句话说,气相的分子,有更多的到处游荡的自由度。

    麻省理工公开课 - 热力学与动力学课程节选

  • That is, in real life, the variables that you'd normally control aren't some combination of entropy and these variables, but really their temperature, volume and pressure, any couple of those, might be what you'd really have under experimental control.

    在生活中,我们所能控制的,不是熵和其他变量的组合,而是温度,体积,压强,以及其中的两两组合,这些才是试验中所能控制的。

    麻省理工公开课 - 热力学与动力学课程节选

  • And the useful outcome of all that is that p we get to see how entropy changes with one of those variables in terms of only V, T, and p, which come out of some equation of state.

    这样做的重要结果是,我们得到了熵随着V,T或者,其中一个变量变化的情况,这些可以从状态方程得到。

    麻省理工公开课 - 热力学与动力学课程节选

  • Last time we reach the third law which is telling us that we can't quite get to zero degrees Kelvin .but that as the temperature approaches zero degrees Kelvin, the absolute entropy of a pure substance in perfect crystalline form is zero.

    上次课我们得到了热力学第三定律,这个定律告诉我们我们无法,达到0K的温度,但是在我们接近绝对零度的过程中,以完美晶体形式存在的纯物质的绝对熵,也趋向于零。

    麻省理工公开课 - 热力学与动力学课程节选

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