Generally speaking, entropy increase is actually the energy content lost due to irreversibility in a process, and the universe, as the carrier of everything, is an isolated system. Of course, it is inevitable to obey the law of entropy increase. Maybe one day after hundreds of millions of years, everything will be attributed to thermal silence, which means that everything is often said to be attributed to entropy increase.

1. Generally speaking, entropy increase is actually the energy lost due to irreversibility in a process, and the universe, as the carrier of everything, is an isolated system. Of course, it is inevitable to obey the law of entropy increase. Maybe one day after hundreds of millions of years, everything will be attributed to thermal silence, which means that everything is often said to be attributed to entropy increase.

2, the so-called entropy, is to measure the degree of things chaos (disorder), it is one of the three basic elements of the physical world. The law of entropy increase reveals that in an isolated system, it will become more and more chaotic. As an isolated system, the universe naturally obeys the law of entropy increase, that is to say, the universe is bound to go into disorder.

3. Things will die because of the increase of entropy.

brief introduction

In statistics, entropy measures the disorder of a system, which represents the possibility that the system is in different microscopic states under a given macroscopic state, such as temperature, pressure and volume. , or the number of microscopic modes that constitute a macro system.

For example, it is known that there are three balls in three boxes, which is the macro state of the system, and the micro state is the distribution of balls between different boxes, such as all three balls in the first box, or one ball in a box, and so on. The higher the entropy, the more difficult it is for the system to accurately describe its microscopic state.

Why does everything come down to entropy increase?

A pile of firewood, the flame gives off light and heat. A pile of plates fell to the ground and broke into pieces. Do you care when you see these scenes? Perhaps most people don't notice this. These are just ordinary things. However, these seemingly ordinary things have changed irretrievably.

The potential energy of water flow is converted into useless acoustic energy and water wave potential energy, and the chemical energy of wood is converted into light energy and heat energy, and the initially ordered board becomes disordered. We can't convert acoustic energy and water wave potential energy back to current potential energy, light energy and heat energy back to wood chemical energy, and we can't restore the debris to the original plate.

Everything is changing from order to disorder.

In fact, everything in the universe will move from order to disorder. This is the second law of thermodynamics, also known as the law of entropy increase, which was put forward by Clausius. The physical expression is dS=dQ/T, where s stands for entropy, 1 stands for heat and t stands for time. Suitable for isolation system.

The so-called entropy is a physical quantity to measure the disorder of things and one of the three basic elements of the physical world. The law of entropy increase reveals that in an isolated system, it will become more and more chaotic. As an isolated system, the universe naturally obeys the law of entropy increase, that is to say, the universe is bound to go into disorder.

Things will die because of the increase of entropy.

It can be said that it is precisely because of the increase of entropy that things in the universe will go to extinction. People will age and die; Stars will die because of the exhaustion of fuel and become white dwarfs, neutron stars or black holes; This planet will be swallowed up by a red giant when the star "life" ends.

Even black holes will continue to evaporate until they finally explode and die! The answer is yes, that is to give this system energy! For a simple example, the earth, it is precisely because the sun has given the earth enormous energy that the creatures on the earth will not become extinct.

Once the sun loses its light, the vibrant and orderly earth has only one ending, and that is to become a dead planet like Mars.

Nothing can escape the law of entropy increase.

If there is enough energy, the entropy of this system will decrease. For example, a glass of water, put into the refrigerator, liquid water becomes solid ice, from disorder to order, which is the result of power consumption in the refrigerator. However, once the power supply is stopped, the solid and orderly ice will become more disordered water and even more disordered water vapor.

Nothing can escape the law of entropy increase, so Liu, a science fiction expert, said: Death is the only lighthouse that is always on. No matter where you sail, you will eventually turn to the direction it guides. Everything will die, only death will live forever.