This quantity is exactly zero for an ideal gas and we'll discover why eventually it has to do with what we mean by an ideal gas it turns out.

对理想气体它是零,这点我们接下来会知道是,为什么，这与为什么我们叫它理想气体有关。

麻省理工公开课 - 热力学与动力学课程节选

Right, 'cause that means either I've been handed zero elements which mean there's really no work to be done or I've been handed one element which is a vacuous truth that it's sorted, right?

因为如果给出0个元素,那意味着不需要做任何事,如果给出1个元素，那显然,它是有序的，对吗？

哈佛公开课 - 计算机科学课程节选

And the bond order you get out will either be, for example, zero, which would mean that you have no bond, 5 or you could have 1, a single bond, 1 . 5, a 1 and 1/2 bond, 2, a double bond, and so on.

你得到的键序要么是比如说是零，这意味着没有键，或者你会得到1，单键1。,1又二分之一键，2，一个双键，等等等等。

麻省理工公开课 - 化学原理课程节选

When delta G is zero, you know, it doesn't mean that you've got all of one side, all reactants and zero products or all products and zero reactants.

当dG等于零的时候，化学反应并不处在任何一边，例如全部都是反应物没有生成物,或者全部都是生成物而没有反应物。

麻省理工公开课 - 热力学与动力学课程节选

Did no work. Does that mean du is zero?

没有对外做功，这是否意味着du=0？

麻省理工公开课 - 热力学与动力学课程节选