[no subject]

[brian whatcott <inet@INTELLISYS.NET>]

At 14:49 7/20/99 +0800, you wrote:
> greetings. i just joined your e-group recently and have found most
> discussions to be very informative. i have read the discussion on the
> saturation of air. a related point  :
>
> dry air is actually denser than moist air, contrary to what majority of
> our clients thought. in one particular session, i encountered a teacher
> who was quite hard to convince. kindly provide me with a thorough
> explanation.
>
> thanks.
>
> alvin c. flores

Consideration of the average weight of oxygen and nitrogen molecules
versus that of water will provide the answer.
Review the plurality of the oxygen molecule versus the singularity of
 the oxygen component of water.

Oxygen density 1.43 kg/m^3
Nitrogen density  1.25 kg/m^3
Hydrogen           0.09 kg/m^3
Water vapor (273K)    0.80 kg/m^3
Air                  1.29 kg/m^3

brian whatcott <inet@intellisys.net>
Altus OK