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If you divide the two of them through you will get 6.02 times 10 to the plus 23 per mole.
如果你除以他们两个,你会得到6。02*10^摩尔。
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P dV is equal to R dT. pV = RT for 1 mole, pdV=RdT so I just take dV here.
对等压过程，那么。
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So if I tell you that the energy for single hydrogen atom is negative 13 12 kilojoules per mole.
如果我告诉大家单个氢原子的能量,是负的，1312，千焦每摩尔。
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It is joules per atom. Or, if you multiply by Avogadro's number then you will get joules per mole.
焦耳每个原子，或者，如果乘以,阿伏伽德罗常数你会得到焦耳数每摩尔。
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So, what we get for the disassociation energy for a hydrogen atom is 424 kilojoules per mole.
因此，我们就得到了氢原子,离解能的大小为，424，千焦每摩尔。
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And, likewise, if we look at fluorine in its diatomic molecule, it is 160 kilojoules per mole.
一样的，如果我们观察二价的氟，它是每摩尔160焦。
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So, if I look at the mole ratios on the reaction over there I'm going to find that I'll be able to consume, at most, 1,029 over two, right?
所以，注意反应的摩尔比,我们会发现，1029摩尔的镁能被消耗，对吧？
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This will be the definition of the mole as the amount of carbon weighing exactly 12 grams, so I would like to know now how many particles, how many carbons are there in that mole.
摩尔的定义就是,12克的碳的数量，我想知道有多少粒子，一摩尔会有多少碳粒子。
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The volumes per mole of that stuff.
每摩尔物质的体积。
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Cp, I forgot to put my little bar on top here because it's per mole Cp dT that's my dq here.
上面的Cv我忘记加上横线了,因为它也是摩尔热容。
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In contrast, the dissociation energy of a bond for hydrogen, and molecular hydrogen is everywhere around us, we see 432 kilojoules per mole.
相反，氢分子在我们周围到处都是，一个氢分子的离解能，是432千焦每摩尔。
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So, for example, for the chlorine case, we would say that the electron affinity for chlorine is actually positive 349 kilojoules per mole.
比如，以氯为例，我们可以说氯的电子亲和能,应该等于正的，349，千焦每摩尔。
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475 Multiply by 1.7475 787kJ/mol and you end up with minus 787 kilojoules per mole.
乘以1。,最终得到。
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So this is not going to be a favorable process, we're going to find that the electron affinity is actually a negative 7 kilojoules per mole for nitrogen.
因此这并不是一个容易发生的过程，我们会发现氮的电子亲和能,应该是负的，7，千焦每摩尔。
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If we want to talk about two hydrogen atoms, then we just need to double that, so that's going to be negative 2 6 2 4 kilojoules per mole that we're talking about in terms of a single hydrogen atom.
而要讨论两个氢原子，我们只需要把它乘以二，因此应该是负的，2624，千焦每摩尔,这就是单个的氢原子的情况。
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And if you do so, you will end up with 1.312 mega joules per mole for this quantity K.
这样做之后，对于K常量你就能得到2,1。312百万焦耳每摩尔。
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If I have one that's 400 kilojoules per mole and another that's 200 kilojoules per mole and I blend them, how do I get 500 kilojoules per mole?
如果你有一个每摩尔400千焦的分子,和一个没摩尔200千焦的分子,我把它们并子一起，我怎么得到每摩尔500千焦的键？
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60 If we look at 435 times 160, take the square root of that, we will end up with 264 kilojoules per mole, which sensibly lies between these two values.
35乘以，取平方根，我们会得到264千焦每摩，很合理地落在两数值之间。
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So, if we took the case of nitrogen, if we add an electron to nitrogen and go to n minus, we find that the change in energy is 7 kilojoules per mole.
如果我们以氮为例，如果我们给氮增加个电子令它变成-1价的氮，我们会发现能量的变化是，7，千焦每摩尔。
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I'm averaging it over the entire set of valence electrons which gives me 1.91 MJ per mole.
我是在整个价电子的集合上作平均,最后得到1。91兆焦每摩尔。
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If you flip the Periodic Table over you will have the ionization energy of sodium, first ionization energy, 5eV and it is about 5 eV which, when you convert, 496kJ/mol is a whopping 496 kilojoules per mole.
如果浏览周期表,你可以得到钠的离子化能，第一电离能，大约，当你转换的时候，是巨大的。
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This means in order to do that we actually have to put 7 kilojoules per mole of energy into the reaction to make it happen.
这意味为了完成上面的反应,我们不得不往里面注入,7，千焦每摩尔的能量。
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That gives us 1 mole of calcium oxide and 1 mole of carbon dioxide.
摩尔的氧化钙,和1摩尔的二氧化碳。
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What is the mole? Mole is a more practical value, something that we can handle tangibly.
什么是摩尔，它有实际值，我们可以很明白的掌握的。
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This is 12.011 grams per mole or 12.011 atomic mass units,AMU.
这是12。011克每摩尔,或者12。011原子质量单位。
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But when the concentration in the alloy is 50/50 by mole, something magical happens.
但是当合金中的浓度,是1比1的时候，有些神奇的事发生了。
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So I can make a quantity that I'll call V bar, which is the molar volume, the volume of one mole of a component in my system, and that becomes an intensive quantity.
所以我可以定义，一个叫做一横的量，这是摩尔体积系统中,一摩尔某种组分的体积，它就变成了。
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