利用气体分子相对速度的各向同性导出平均相对速率

doi:10.16854/j.cnki.1000-0712.2016.0144

College Physics ›› 2016, Vol. 35 ›› Issue (10): 28-.doi: 10.16854/j.cnki.1000-0712.2016.0144

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Deriving the average relative speed of gas molecules with the isotropy

ZHENG Yong

College of Physics and Electronics，Qiannan Normal College for Nationalities，Duyun，Guizhou 558000，China

Received:2015-10-21 Revised:2016-03-12 Online:2016-10-20 Published:2016-10-20

Abstract

Abstract: The relative velocity distribution of molecules of ideal gas is found to possess the same function form as the velocity distribution，which is due to the similar statistical properties they satisfy.The constant in this function is difficult to determine for the former and we have completed this by employing a familiar relation which generally being used in an approximate discussion of the average relative velocity. Then the average relative velocity is calculated.

Key words: ideal gas, average relative velocity, derivation

ZHENG Yong. Deriving the average relative speed of gas molecules with the isotropy[J].College Physics, 2016, 35(10): 28-.

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Deriving the average relative speed of gas molecules with the isotropy

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