- #1
tony1grendel
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So awhile ago I was thinking about wind.
Sometimes wind is hot but when I think of wind I usually think of cold wind.
Wind seems to be fast moving particles and I know based on the kinetics theory of gases
[tex] KE = \frac{1}{2}mv^2 = \frac{3}{2}kT [/tex]
Maybe, I'm making a wrong assumption but to me this seems that if a particle of gas has a high KE and high v that it will have a high T
So why would there be cold wind. Shouldn't all high velocity wind be hot?
Through my investigation of this I have gotten some info on how wind is created.
From what I can gather
The sun heats the Earth unevenly
The atmosphere of the Earth that is getting heated
and the hot air rises because it becomes less dense
(here is where I get a little confused and maybe making wrong assumptions)
this causes less pressure in that area of the atmosphere
causing nearby particles of air to fill the uneven pressure (partial vacuum the rising hot air created?)
and so you have wind!
To me it seems if the gases filling the uneven pressure have a low T that it would seem plausible that we would have cold wind BUT wouldn't that air over time heat up because of it's increase in KE?
I know this looks like a wall of text now but this is my thought process
Sometimes wind is hot but when I think of wind I usually think of cold wind.
Wind seems to be fast moving particles and I know based on the kinetics theory of gases
[tex] KE = \frac{1}{2}mv^2 = \frac{3}{2}kT [/tex]
Maybe, I'm making a wrong assumption but to me this seems that if a particle of gas has a high KE and high v that it will have a high T
So why would there be cold wind. Shouldn't all high velocity wind be hot?
Through my investigation of this I have gotten some info on how wind is created.
From what I can gather
The sun heats the Earth unevenly
The atmosphere of the Earth that is getting heated
and the hot air rises because it becomes less dense
(here is where I get a little confused and maybe making wrong assumptions)
this causes less pressure in that area of the atmosphere
causing nearby particles of air to fill the uneven pressure (partial vacuum the rising hot air created?)
and so you have wind!
To me it seems if the gases filling the uneven pressure have a low T that it would seem plausible that we would have cold wind BUT wouldn't that air over time heat up because of it's increase in KE?
I know this looks like a wall of text now but this is my thought process