If you take one of those individual grains of sodium chloride, look at it carefully, you will see the edges look like this.
如果你拿起,氯化钠晶体的一粒,仔细观察,你可以看到这样的棱角。
And then, if you go the real sodium chloride crystal and you do this same calculation but in three-dimensions.
接下来,如果回到实际的氯化钠晶体中,你们做同样的计算,但是是在三维中。
And I want that to react to give me sodium chloride as a solid and crystal.
它们反应会得到氯化钠,氯化钠固体晶体。
And I know that sodium chloride forms because, if I look on the webpage at 3.091, you see this down here, this is sodium in kerosene.
我知道氯化钠形式,因为我看过3。091的网站,看看这个,这是钠在煤油中。
And so you can imagine that if you mix these, if you take sodium and you mix it with chlorine you get sodium chloride.
如果将它们混合,以钠和氯反应为例,就会反应得到氯化钠。
And you will form a crystal of sodium chloride as a result of this need to form crystal expressed through the Coulomb's Law.
你能得到氯化钠晶体,因此,形成晶体所需要的条件,在库伦定律中通篇都有表达。
I know table salt is white, but that is because you have power and you have multiple surfaces scattering, but a large crystal of sodium chloride is clear and colorless.
我知道食用盐是白色的,但这是因为你让它成了粉末,因为有了多个散射面,但是一个大的氯化钠晶体,是无色透明的。
A sodium chloride crystal is transparent to visible light.
氯化钠晶体对可见光透明。
This is my humble drawing to indicate discrete sodium chlorine pairs.
我画的比较丑,想表示不连续的氯化钠对。
I am doing this for plus one minus one like sodium chloride.
我正在这样做,因为就像氯化钠那样一正一负。
And there is the sodium chloride crystal that forms between the two of them.
这是氯化钠晶体,在它们俩之间形成。
Electron transfer, we cannot live, we die without sodium chloride.
电子转移了,没有氯化钠我们不能生存。
And thanks to Professor Hess, I can now say that the total energy delta H In other words, delta H formation of sodium chloride should be independent of paths.
感谢道盖斯教授,我们可以认为,这整体过程,氯化钠的化合能,与路径无关。
OK, sodium chloride works.
如氯化钠。
Sodium chloride is about 801 degrees C.
氯化钠的在801摄氏度。
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