You could run the reaction, take solid iron gaseous oxygen, form iron oxide, measure the heat of formation of it, tabulate it.

你可以进行一个反应,用固态铁和氧气生成氧化铁，测量它的生成热，列成表格。

麻省理工公开课 - 热力学与动力学课程节选

So we'll have an iron oxide species. It's a solid.

那么我们有氧化铁，它是固体。

麻省理工公开课 - 热力学与动力学课程节选