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