Second law of thermodynamics

[JustinHorriat_4f]

Can someone explain to me the second law of thermodynamics? I know what it says but I’m struggling to understand the concept behind it.

[Gerald Bernal1I]

The second law explains entropy in regards to a system. The total entropy of an isolated system can never decrease over time, and is constant if and only if all processes are reversible. This is used describe spontaneity in a system or if a reaction is favorable. The equations dealing with entropy help prove this law.

[805422680]

The second law of thermodynamics states that the total entropy of a system always increases for a favourable reaction. That is the system always moves to a state of increased disorder

[SVajragiri_1C]

The second law of thermodynamics is that the entropy (chaos) of the universe is always increasing.

[CNourian2H]

it is natural for entropy to increase abd be greater than 0 because the world naturally will always has disorder. Only in conditions that aren't related to the real world, that is when entropy is =0.

[Miriam Villarreal 1J]

There are more ways that the energy can exist in the high entropy state than in the low entropy state. The second law in fact requires the first law to be true, otherwise entropy could spontaneously decrease in a process that destroys energy.

[Tiffany_Chen 2K]

Entropy in the natural world is always increasing, if the reaction is reversible, entropy would then equal 0.