So, there's actually another way to graph it where we can directly graph the dissociation energy or the bond strengths.

其实，还有另外一种画这个曲线的方式,可以直接画出离解能的大小,或者键的强度。

麻省理工公开课 - 化学原理课程节选

So what we can actually directly compare is the dissociation energy or the bond strength of nitrogen versus hydrogen.

因此实际上我们可以直接进行比较,对氮分子与氢分子的离解能,或键的强度。

麻省理工公开课 - 化学原理课程节选

22kJ/mol And dissociation energy is 122 kilojoules per mole.

离解能大约为。

麻省理工公开课 - 固态化学导论课程节选

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。

麻省理工公开课 - 化学原理课程节选

If we know that this is it the dissociation energy for a hydrogen atom, we can also say the bond strength for hydrogen molecule 424 is 424.

如果我们知道了这是一个氢分子的离解能,那么我们也可以说氢分子的键的强度,就是。

麻省理工公开课 - 化学原理课程节选

And so we can actually think about how do we calculate what the dissociation energy should be for h 2, so let's go ahead and do this.

因此，我们其实可以想到应该如何计算,氢分子的离解能，那么我们开始做一下吧。

麻省理工公开课 - 化学原理课程节选

It only has a dissociation energy of . 1 kilojoules per mole.

它的离解能只有0。01千焦每摩尔。

麻省理工公开课 - 化学原理课程节选

Number two is dissociation energy.

第二项是离解能。

麻省理工公开课 - 固态化学导论课程节选

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。

麻省理工公开课 - 化学原理课程节选

So, another way to talk about dissociation energy is simply to call it bond strength, it's the same thing, they're equal to each other.

讨论离解能的另外一种方式,是直接称它为键的强度，它们是一样的，彼此相等。

麻省理工公开课 - 化学原理课程节选

So, let's change our graph where we now have this zero point set as the two individuals hydrogen atoms, and then we see that our h 2 molecule is at the negative of the dissociation energy, or the negative what that bond strength is.

那么让我们把曲线图中的零点能改到,两个分离的氢原子处，那我们就会看到,氢分子就是负的离解能，或者负的键的强度。

麻省理工公开课 - 化学原理课程节选