Micro-expression method of diatomic molecule ideal gas system entranspy
An ideal gas, diatomic technology, applied in computational theoretical chemistry, electrical digital data processing, special data processing applications, etc., can solve problems such as entropy and microstate number of ideal gas systems without diatomic molecules
Inactive Publication Date: 2018-07-27
XI AN JIAOTONG UNIV +1
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[0005] However, the connection between entransy and the number of microscopic states in the ideal gas system of diatomic molecules has not been established yet, and in daily life and industrial production, the application of diatomic molecular gases is more common than monoatomic gas molecules
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[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0036] see figure 2 , the present invention comprises the following steps:
[0037] 1) Establish a diatomic molecule ideal gas system model as attached figure 1 Shown, wherein ●○ represents a diatomic molecule;
[0038] 2) Treat the ideal gas system as an indistinguishable particle system, calculate the microscopic state number Ω of the system, and its microscopic state expression is Ω=(Z N / N! )exp(U / (kT));
[0039] 3) Due to the huge number of particles in the system, use Stirling to approximate lnN! ≈N(lnN-1) simplifies the expression of the number of microscopic states, and the simplified result is Ω=(Ze / N) N exp(U / (kT));
[0040] 4) Analyze and obtain the internal energy U expression U=c of the ideal gas V T;
[0041] 5) Analyze and obtain the constant-volume heat capacity expression of the diatomic molecular ideal gas system at room temperatur...
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The invention relates to a micro-expression analysis method of diatomic molecule ideal gas system entranspy. The method includes the steps: taking a diatomic molecule ideal gas system as an indistinguishable particle system, and calculating microstate numbers of a system; simplifying a microstate number expression by the aid of a Stirling approximation and a diatomic molecule ideal gas internal energy expression; analyzing electron, kernel, translation, rotation and vibration partition functions of a diatomic molecule at normal temperature to obtain a total partition function of a diatomic molecule system; acquiring a relational expression of the temperature and the microstate numbers by combining the microstate number expression and the total partition function; giving a macro-expressionof the entranspy, and acquiring a micro-expression of the diatomic molecule ideal gas system entranspy at the normal temperature by combining the relational expression of the temperature and the microstate numbers.
Description
technical field [0001] The invention relates to a microcosmic representation method of the engenetion of a diatomic molecular ideal gas system. Background technique [0002] In 2006, based on the comparison between heat transfer and charge transfer phenomena, Guo Zengyuan and others introduced a new physical quantity—entransy, defined as half of the product of heat capacity and temperature. [0003] The entransy of an object represents the total ability of the object to transfer heat. And any heat transfer process has entransy dissipation, that is, when heat is transferred from a high-temperature object to a low-temperature object, the heat itself does not change, but its total ability to transfer heat to the outside is reduced. Therefore, the entransy becomes another important physical quantity to represent the irreversibility of the heat transfer process. [0004] In terms of research from a microscopic perspective, Cheng Xuetao et al., inspired by the microscopic expres...
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IPC IPC(8): G06F19/00
CPCG16C10/00
Inventor 陶文铨王啸娟何雅玲陈磊王忠东崔高颖
Owner XI AN JIAOTONG UNIV