free energy change

例句：

1. 1. The efficiency ofthe solar panel depends on the free energy change during the charging process.
   太阳能板的效率取决于充电过程中的自由能变化。
2. 2.In this study, we focused on the free energy change of the system under different conditions.
   在这项研究中，我们关注了系统在不同条件下的自由能变化。
3. 3. The researchers discovered a new method for measuring the free energy change in chemical reactions.
   研究人员发现了一种新的测量化学反应中自由能变化的方法是。