We talked about this reaction here, where we had chloride ion in the gas phase plus sodium ion in the gas phase.
我们在讨论这一个反应，气态的氯原子加上气态的钠原子。
The linear relationship between the gas phase standard enthalpies of formation and the substituent constants is discussed.
讨论了气态摩尔标准生成焓与取代基常数间的线性关系。
This is called ionization, gas phase species loses an electron.
而这个过程是离子化，气相组分失去一个电子。
Doesn't like that. It says, get me out here, I'd much rather be in the gas phase, compared to the ideal case, then surrounded by all these acetone molecules, right?
不像那个，它说，让我出来到这儿，我更愿意处于气相，相比于理想情况，那样被，所有这些丙酮分子包围，对吗？
So I decrease the pressure, I get the pure gas phase of my new solution here.
因此我降压，可以得到一个完全是气相的新的溶液。
See, up until now I have been talking about gas phase, single atoms, all this stuff.
看，只到现在我们已经讨论了气相，单原子，这些东西。
Going to make the same diagram, except now I'm going to use the gas phase as my reference point.
然后就可以做出相图了，唯一不同的是我这里用气相作为我的参考点。
So it's very different from the gas phase, where it can be a pretty realistic approximation to say, well, the molecules are essentially non-interacting.
所以它和气相很不同，气相中可以是,很理想的近似，也就是说，分子之间基本上没有相互作用。
And I am saying suppose these form, as they have to initially, in the gas phase.
我想说假设这些形式，就和它们气相中的一样。
And if we go over here, this is telling us about the mole fraction in the gas phase.
如果我们到达那，它告诉了我们气相的摩尔分数。
And this is just the Gibbs free energy per mole of a in the gas phase.
气相中的化学势，就是气相中每摩尔a的吉布斯自由能。
In other words, they were there in the entropy contribution in the gas phase as well, in the pure gas.
换句话说，它们也对熵有贡献，在气相时在纯气体时。
So what that means is, relative to the ideal solution, they'd rather go up into the gas phase.
那意味着，相对于理想溶液，它们更愿意上升进入气相。
So what this line is, then, this line is the line of points that tells me when I have coexistence between the gas phase and the liquid phase.
所以这条线只是一系列点的直线,这些点实际上是,气相和液相之间的共存点。
Because really what we want is the total pressure as a function of the composition in the gas phase.
因为我们想要的是，总压强作为气相组分的函数。
So, what happens if I put pluses and minuses in a gas phase?
如果我把带正电的东西和带负电的东西都放在，一个气相中，会是什么样呢？
Basically, it's looking at decomposition of a gas phase molecule.
大体上，它是看气相分子的分解。
Dalton only deals with what's happening in the gas phase.
道尔顿只处理气相中的问题。
Also if you want to calculate chemical equilibria in the liquid and gas phase, of course, now you've seen chemical equilibrium, so the amount of reaction depends on the composition.
如果你想计算液相，和气相的化学平衡，当然，你们知道化学平衡，反应的量决定于组分的比例。
If you look at molecules moving around in the gas phase or in a liquid.
如果你看气相，或液相中分子的运动。
What's the composition of liquid, compared to the composition of the gas phase?
和气相成分比较，液体的成分是什么？
If I'm sitting below the line here somewhere, so I'm sitting here. Some composition in the gas phase, a certain pressure.
如果我位于这条线以下的，某个位置，比如这里，给定的压强，给定的气体组分，很好。
In other words, if you say, now let's think of the energy it would take to evaporate all the atoms or molecules and let them loose in the gas phase.
换句话说，所需要的能量是不一样的，把所有原子或分子，蒸发到气相。
I'm on this point here, I keep my solution, my mixture. I make a gas, I read off the composition of the gas phase here.
我在这个点，保持溶液混合物，然后进行汽化，在这里读出气相的成分比例。
So I'm going to find the total pressure as a function of the composition in the gas phase.
我想找到总压强作为，气相中组分的函数。
So I have all, I have everything I need to know t o calculate what the composition in the gas phase is.
就能够很快算，出气相的组分，我现在知道所有的条件。
So that means that the molecules of CS2 would rather go in the gas phase.
这说明CS2分子2，更喜欢进入气相。
So I know the translationa l energy of a mole of molecules in the gas phase at room temperature without doing anything all.
所以不用做计算,我就知道了室温下,1摩尔气相分子。
Let's do a little detour here and talk about equilibrium in solution, which is really as important, or if not important for a lot of you, then gas phase equilibrium.
让我们多绕个圈子，讲讲溶液中的平衡，同样也非常重要，或者对你们中的某些人可能不重要，然后是气态平衡。
But now, it's not as a function of the composition at the liquid phase it's a function of the composition in the gas phase.
但是现在，这里不再是以液相的组分比，作为变量，而是以气相的组分比作为变量。
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