RCE wrote:
"Del Cecchi" wrote in message
...

"RCE" wrote in message
om...

"Shortwave Sportfishing" wrote in message
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On Tue, 13 Jun 2006 09:00:14 -0400, Harry Krause
wrote:


Butch Davis wrote:

There is a difference between a gas and a vapor? I thought there were
liguids, fluids, and gases. Fluids covering both bases? But with a
refrigeration background my thoughts are probably too simplistic.
Butch


It's been a while since I took a chem course, but I thought gases are
normally in that state, while vapors arise from liquids. Gasoline, for
example, is normally a liquid, but it releases vapors.

Technically, gases expand and contract under pressure and spread
uniformly through a cylinder. Vapors don't do that.

Water vapor is the same. The rest of the gases (particularly nitrogen,
which makes up most of the atmosphere) suck up the water vapor and we
call it humidity. (water vapor also won't compress)

RCE

www.eisboch.com


Where did you guys study physics? I really want to know so my grandkids
don't go there by accident.

del



Before I answer, please explain what bothers you about my statement. Is it
that water vapor does not compress? Or that humidity is not a function of
the amount of water vapor held by the various gases in the atmosphere?

Inquiring minds want to know .... :-)

RCE

www.eisboch.com

The "water vapor does not compress" and the idea that there is some
other state other than solid liquid or gas called "vapor" which sounds
sort of like an aerosol or something. What exactly is this "vapor" that
doesn't spread and is incompressable?


--
Del Cecchi
"This post is my own and doesn’t necessarily represent IBM’s positions,
strategies or opinions.”