The energy for single hydrogen atom is negative 1312 kilojoules per mole.

单个氢原子的能量是 -1312 千焦每摩尔。

youdao

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。

youdao

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。

youdao

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。

麻省理工公开课 - 化学原理课程节选

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。

麻省理工公开课 - 化学原理课程节选

So for b 2, which is a single bond, that's 289 kilojoules per mole to break it, and it takes us more energy to break this double bond for carbon, which is 599 kilojoules per mole.

对于B2，它是单键，需要289千焦每摩尔来打破它，而对于碳双键,打破它要更多的能量，等于599千焦每摩尔。

麻省理工公开课 - 化学原理课程节选