化肥，就在这些化学公司成立时诞生，这是平衡的一个很好例子。
Fertilizers, at the birth of the chemical company, and it's a great example for equilibrium.
因为它处于平衡状态，所以这个特定组分在所有相中的化学势，都必须相等。
Because it's in equilibrium, the chemical potential of that particular component has to be the same in all the phases.
这就是说，我们可以计,算普通化学反应的平衡常数,从第一原理。
So what it means is, we can calculate equilibrium constants for ordinary chemical reactions just from first principles.
现在我们已经有了，讨论化学平衡的所有工具。
So now we have all the tools we need to look at chemical equilibrium.
和我们刚刚做的化学平衡的例子。
沃尔纳德斯基的看法非常接近洛夫洛克的感悟，即地球的生物圈显现了一 个超越化学平衡的规则。
Vernadsky came very close to Lovelock's epiphany that the Earth's biosphere exhibits a regulation beyond chemical equilibrium.
到达某个程度时化学势，会由于压强的改变而平衡。
And at some point the chemical potentials will equalize because of the change in pressure.
如果我们知道，了关于所有参与，反应的化学物质的，我们就能够计算出化学平衡。
And if we know G for all the species G involved in a chemical reaction, we should be able to calculate the chemical equilibrium.
最近人们意识到NCE短缺，希望基因组学、组合化学和高效筛选这些新技术的应用能改变这一不平衡。
An nce deficit has recently been identified, and it is hoped that the application of new technologies such as genomics, combinatorial chemistry and high-throughput screening will redress the balance.
得到了相平衡常数和化学平衡。
但我们现在在做化学平衡，能量零点在这里。
But since we're doing chemical equilibria, the zero of energy is up here.
在平衡态固相和液相的化学势相等，固相和气相一样。
And turning the crank at equilibrium, being equal between the solid phase and the liquid phase.
下堂课我要做的是,讨论化学计量学，和,质量平衡很反应定律,但在下课之前，我不希望你们这么快走。
What I am going to do next day is go into the larger stoichiometry and understand the principles of mass balance and reactivity But before you go,hold it,I don't want you racing off.
现在要做的另一个例子，与化学平衡有点不同。
But the one other example I want to work through is a little bit different from chemical equilibria.
好现在是平衡态，我们讨论溶液中的平衡态，我们仍然仍然讨论化学势。
OK, so in equilibrium now, when we talk about equilibrium in solution, we still have to, still going to be the chemical potential.
化学平衡。
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。
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.
我们就要开始讨论化学平衡，推导相平衡在什么位置？
we'll start in on discussing chemical equilibrium, does deriving where they lie phase equilibrium?
解释这些现象需要新的方法产生氧化剂，这种氧化剂却无法改变大气层中其他化学物质的平衡。
Explaining these requires new ways of producing oxidising power which do nothing to alter the balance of other chemicals in the atmosphere.
药物可以改善那些影响情绪的脑化学物质的平衡性。
These medicines can improve the balance of brain chemicals that affect mood.
抑郁症似乎与大脑中某种化学物质的不平衡有关。
Depression seems to be related to an imbalance of certain chemicals in your brain.
这里我要强调的是,当我们讨论化学反应速率的时候，这点和平衡不同，我们只讨论特定方向的反应。
So the point I'm emphasizing here is when we talk about reaction rates, unlike equilibria, we're talking about a particular direction.
这支球队不是很平衡，而对内的化学反应也一直不如人意。而这一定会影响到霍华德的未来。
The team has an unbalanced roster, possibly some chemistry issues and a potentially huge off-court distraction with Howard's future.
以化学元素表来衡量，地球的化学性质是不正常的，完全失去了平衡，却充满活力。
The chemistry of the Earth was out of kilter, wholly unbalanced by the periodic table, and alive.
你也会得到平衡，尽管在这种情况下你得到了一个，自发的，合理的平衡，这是在正常条件下进行的，许多化学反应的情况。
In those cases, though, you'd have quite a reasonable equilibrium, spontaneously that is there would be a lot of reaction that went if you simply started under practical conditions and let it go.
现在，曾经边缘化的冶疗手段产生对于心理疾病的新的视角，心理疾病是因为对于脑中互相连接的网络的某种影响，而不是特定区域的化学物质的不平衡。
This once fringe treatment is now creating a new view of mental illness as a condition affecting an interconnected network rather than arising from chemical imbalances in specific regions.
它还和大脑的生理变化相关和一种给大脑和神经传递信号的化学物质的不平衡有关。
It is related to physical changes in the brain, and connected to an imbalance of a type of chemical that carries signals in your brain and nerves.
所以远离烟草并保持不吸烟的状态就可以帮助你平衡脑部化学成分。
Avoiding cigarettes—and staying smoke free—could help balance your brain chemicals.
学习酸，碱和盐的基础知识。理解在化学中对它们的定义。研究平衡的概念并了解简单的酸，碱，盐(在水溶液中)如何反应。
Look at basic acids, bases, and salts. Understand the definition for use in chemistry. Explore the concept of equilibrium and how (when aqueous) basic acids, bases, and salts react.
学习酸，碱和盐的基础知识。理解在化学中对它们的定义。研究平衡的概念并了解简单的酸，碱，盐(在水溶液中)如何反应。
Look at basic acids, bases, and salts. Understand the definition for use in chemistry. Explore the concept of equilibrium and how (when aqueous) basic acids, bases, and salts react.
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