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atmosphere what acts as theHowever when hot air is unconfined in the
everywhere.surface of the balloon?
Key idea: Air is a fluid. It has a pressure
Pressure is not something that happens just atsurfaces.
parcels
Each parcel of fluid pushes on the neighboring
of fluid.
I knew this and was thinking something along these
lines. I have difficulty
visualizing this idea. Pressure equals force per
unit area. Seems like a
surface is an necessity.
Interesting ideas in your website. I intend to read
it more thourouly. One
statement said that each air molecule collides with
one or another of its
neighbors 10,000,000,000 times per second. How is
something like this
determined?
Again: P = (N/V) kT
Same pressure, same temperature ==> same number
per volume. Then less mass per particle ==>
less mass per volume.
The H2O molecule is a lot less massive than N2.
Humidity rises for the same reason a helium
balloon rises.
Would unconfined helium rise just as well as
confined helium?
At ordinary temperatures, you would need a
container many miles high in order to see
much fractionation of the atmosphere. (And
you would need to suppress convection, etc.)
Doesn't this last statement conflict with the
previous idea that the less
massive H2O rises to the ceiling of a room (much
less than many miles high).
This posting is the position of the writer, notthat of Brown,
Einstein, Smoluchowski, or Nernst.
I like your disclaimers.
This posting represents the questions of the writer
and very likely those of
Brown, Einstein, Smoluchowski, Nernst and Denker at
some time in their life.
This posting is the position of the writer, not that
of SUNY-BSC, NAU or the AAPT.