It is the amount of heat that is required to melt something, and the amount of heat that it gives off when it freezes. (They are the same amount.)
The crystalline structure of the solid most determine the entropy of a solid.
Reactions that increase the moles of gas will increase in entropy.
F=v/&
You think probable to an endothermic chemical reaction.
6.212
Chemical rocket
The entropy of the universe is increasing
Air
(Explanation): water has a high specific heat capacity, but it can boil. stone (😂) also is a good thermal insulator, but it can get really hot. Metal is a very good thermal conductor, so it is definitely not that. Therefore, air is the best (its also really hard to boil).