We have looked at chemical and physi cal changes throughout the book.
We studied how fast chemical changes occur and how to predict how far they will go using equilibrium constants.
We have learned that acids and gases fill containers.
You may be surprised by the answer.
Nature tends towards a state in which energy is spread out the most.
The freezing of water below 0 degC, the dissolving of a solid into a solution, the neutralization of an acid by a base, and the development of a person from an embryo all increase the universe's entropy.