So, for example, in a hydrogen atom, if you take the binding energy, the negative of that is going to be how much energy you have to put in to ionize the hydrogen atom.

例如在氢原子里面,如果你取一个结合能,它的负数就是。

麻省理工公开课 - 化学原理课程节选

Wrev So minus w reversible, 1 p2 is less than p1, so p2 over p1 is less than one, log of something less than 1 is negative times negative.

那么，而p2小于p1，p2/p1小于，取对数后是负数,负负得正。

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