The entropy law, or the second law of thermodynamics, has as object of study the disorder within a system. The bigger the system and the more the molecules and atoms within, the more the entropy contained.

Estimating the disorder

In big lines, entropy can be defined as a measure of disorder of a system. However, nobody can give more details about its nature, as there have been so many definitions of the term throughout the years. All these definitions vary according to the discipline the term is used for.

The confusing nature of entropy

The second law of thermodynamics, the so-called 'the entropy law', it is said to be one of the most important laws in nature. This law states that entropy, which is a measure of disorder in a closed system, almost always increases in time.

The entropy law

Advertisement You can't easily put the toothpaste back into the tube. You can't expect molecules of steam to spontaneously migrate back together to form a ball of water. If you release a bunch of corgi puppies into a field, it's very unlikely you're going to be able to get them all back together into a crate without doing a ton of work.

The confusing nature of entropy

Estimating the disorder

The entropy law

Entropy: The Invisible Force That Brings Disorder to the Universe

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