و آر ایل:https://chem.libretexts.org/@api/deki/files/121060/Figure_19.2.5.jpg?revision=1&size=bestfit&width=867&height=316
و آر ایل:https://chem.libretexts.org/Bookshelves/General_Chemistry/Map:_Chemistry_-_The_Central_Science_(Brown_et_al.)/19:_Chemical_Thermodynamics/19.2:_Entropy_and_the_Second_Law_of_Thermodynamics
