Entropy And Sustainable Development

Entropy can quantitatively describe the development direction of complex sys-tems.Firstly,this paper introduces the three most common entropies,thermody-namic entropy which are introduced by the second law of thermodynamics,Boltz-mann entropy and information entropy.Based on the first two kinds of entropy,the expression of ideal gas entropy under the theory of relativity is derived,and H2,He,H2O,H2O*,Ar,O4,S8,C60 are approximately treated as ideal gas molecules.Take the mass of 1 kg matter as the standard,the corresponding entropy is estimated by this expression.Then,considering the influence of topological structure,the for-m of ideal gas entropy and topological structure information entropy is unified and added together,and then the entropy of complex chemical molecular systems such as H2O,H2O*,O4 is estimated,At last,the entropy of biological DNA molecular system is estimated by Shannon entropy formula.The results show that the entropy value is smaller as the system is more complex and orderly.Further,the concept of entropy can be extended to life organization,social organization and other fields.We know that in an isolated system,the spontaneous evolution process will inevitably develop towards the direction of entropy increase,and finally towards"Deathly stillness".The earth on which humans live is in an open system state,which absorbs the available,convenient and low entropy energy emitted by the sun in the form of short wave thermal radiation,which is absorbed,utilized and decomposed by the earth through different processes,In the form of long wave thermal radiation,these energies are diffused into the universe and atmosphere in the form of high entropy,forming an environment of entropy reduction.Moreover,the earth has three states of water and atmosphere,which makes the earth have a constant temperature,and then produce life.It is not difficult to find that the environment of entropy reduction is beneficial to the survival of organisms.Sustainable development is a concept of development that can meet the needs of current people without harming the interests of future generations.As a basic input of various economic activities and general life,energy production is related to the largest scale development of human beings on the earth.In the use of energy,there must be energy conversion process,and most of the conversion process is entropy increase process,The degree of increase is determined by the efficiency of energy conversion.In the second half of this paper,the commonly used energy sources in China are analyzed from the perspective of entropy increase,which shows that we must strive to improve the efficiency of energy conversion process,and at the same time,we must give up those schemes with low efficiency and excessive entropy production.In this way,we can realize the sustainable development of China.