主题:【讨论】The same speed for different gas molecules in a same tubing(Dec. 28th Sign )

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容百川
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As title, I think the speed for deferent gas molecules in a same long flowing tubing is similar.
What is your opinion?
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cuidahua
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miss_fairy
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symmacros
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I don't know, but I think that big molecular or heavy molecular may flow slowly than small one or light one.
容百川
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原文由 symmacros(jimzhu) 发表:
I don't know, but I think that big molecular or heavy molecular may flow slowly than small one or light one.


If the heavy ones move slowly, then collision will take place between the faster and the slower. At last ,if moving path is long enough, speed between the heaveier and the lighter molecule will be no difference. But maybe not the same speed.
容百川
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原文由 miss_fairy(miss_fairy) 发表:
I think that it depends on the gas concentration or the pressure .


not only concentration(pressure), but also temperature. state determines specific speed.
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