John,
The lingering fog is the same white cloud you see over a pot of boiling
water. It consists of droplets of liquid water that have condensed from
water vapor. The cloud remains until the droplets have evaporated.
On Sat, Aug 22, 2015 at 5:01 AM, John Dom <johndom@xxxxxxxxx> wrote:
To understand T-s diagrams and J-T expansion is another task to study. I
have been browsing for the subject but as yet found no T-s graphs including
decent explanations. Those practical diagrams were not part of our
thermodynamics courses which were mainly about laws and cycles.
There was that large helium tank (used for gas chromatography) standing
outside the lab. Outside near the cold exhaust tube on it were indeed large
chunks of (water) ice de-sublimated on it from the environment air.
Related: throwing chunks of solid carbon dioxide in water makes it bubble
with sublimated cold CO2 vapor. But why does that gas produce a *
*lingering** fog on rock&roll stages?
jd