When you don't have to worry about criteria like that ordinary, mechanical energy rules supreme, and that's dictating where equilibrium lies.

如果你不担心像这样的要求,通常的机械能就占据主要地位，并且决定平衡位于何处。

麻省理工公开课 - 热力学与动力学课程节选

In some sense, that's one reason to associate this as a kind of energy, H just like mechanical energy u or enthalpy H, it's the minimum free energy state that is the equilibrium state under the relevant conditions.

在某种意义下，这是我们把这些物理量称为能量的原因，就像机械能U和自由焓，具有最小自由能的状态在特定的条件下,就是平衡态。

麻省理工公开课 - 热力学与动力学课程节选