While that rate is far from ideal, Lo points out that the lower rate will still be a significant improvement for Cambodian families.
VOA: standard.2009.11.10
That for an ideal gas it has to be the case that there's no volume dependence of the energy.
我们可以直接推导这个结果,即证明对理想气体,内能和气体体积无关。
The ideal thing would be that the mutual fund does these calculations and it puts it all together for you.
最理想的事情是,共同基金会做一些这样的计算,再为你们把这些数据综合起来。
Again, a question the book asks is whether that ideal of justice can be used as a model for politics.
而本书所提问的是,理想的正义,是否能为政治起示范的作用。
And for the sake of this class, we're going to consider most gases to be ideal gases. Questions?
有问题吗?好,现在,这一方程建立了,三个状态函数之间的联系:
So that you could see that for the ideal gas, u would not be a function of volume, but only of temperature.
所以我们可以看到对理想气体,内能不依赖于体积,而仅仅是温度的函数。
So for an ideal gas then, dH/dp under 0 constant temperature, that has to be equal to zero.
所以对于理想气体,偏H偏p在恒温下,等于。
The ideal audience for the book," he says "should be the preachers, the gentry, the lawyers, men of affairs, who drawing such water as they find from the book can use it," he says, "to sprinkle the same both from the pulpit and from their conversation upon the people."
他还说,像传教士,贵族,律师,当政者,这样的人就更应该读这本书,因为他们有能力,把从书中汲取的思想认识,通过礼拜或与他人的交谈,有效地传播出去“
If you have a real gas and you write du is Cv dT and your path is not a constant volume path, then you are making a mistake. But for an ideal gas, you can always write this. And this turns out to be very useful to remember.
对于真实气体,如果其变化过程,不是恒容的,du=Cv*dT就不成立,但对于理想气体,这条规则永远成立,这一点非常有用,请记住。
du/dV under constant temperature was equal to zero for an ideal gas. And by analogy, we expect the same thing to be true here, because enthalpy and energy have all this analogy going on here. So let's look at an ideal gas.
偏U偏V在恒温下等于零,可以类比,我们希望在这里也一样,因为焓和能量有很强的类比性,让我们看看理想气体,【理想气体】
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