But we've defined the enthalpy of those elements in their stable state at room temperature and pressure as zero, right?

但我们已经定义了这些,元素处于它们室温和常压下,最稳定的状态时的焓为零，对吧？

麻省理工公开课 - 热力学与动力学课程节选

What we define as zero is the enthalpy of every element in its natural state at room temperature and ambient pressure.

我们将零点定义为每种元素,在室温和正常大气压下,在其自然状态下的焓。

麻省理工公开课 - 热力学与动力学课程节选

SdT This has minus T dS minus S dT, but the dT part is zero because we're at constant temperature.

这一项包含负的Tds和，但是dT的部分等于零,因为温度为常数。

麻省理工公开课 - 热力学与动力学课程节选