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From: Eeee on 18 Feb 2010 06:47
Please,

how to calculate the density of (saturated) moist air which include
condensed water.

Thanks in advance.


From: jbriggs444 on 18 Feb 2010 08:14
On Feb 18, 6:47 am, "Eeee" <skriv...(a)hotmail.com> wrote:
> Please,
>
> how to calculate the density of (saturated) moist air which include
> condensed water.

Start with Boyle's law (aka piv nert) and a table of vapor pressure
versus temperature for water.

Make a reasonable assumption for ambient pressure. Find reasonable
numbers for the relative concentrations of oxygen, nitrogen, etc in
air.

If ambient pressure is P and vapor pressure is PW, what's the partial
pressure PA of the rest of the ordinary atmospheric gasses?

If this atmospheric partial pressure is PA, what's the partial
pressure PO of oxygen? Nitrogen? Argon? CO2? etc.

Given pressure and temperature for each fraction separately, what does
Boyle's law say about the density of each fraction?

Given the density of each fraction, what's the density of the mixture?






From: bert on 18 Feb 2010 09:30
On Feb 18, 8:14 am, jbriggs444 <jbriggs...(a)gmail.com> wrote:
> On Feb 18, 6:47 am, "Eeee" <skriv...(a)hotmail.com> wrote:
>
> > Please,
>
> > how to calculate the density of (saturated) moist air which include
> > condensed water.
>
> Start with Boyle's law (aka piv nert) and a table of vapor pressure
> versus temperature for water.
>
> Make a reasonable assumption for ambient pressure.   Find reasonable
> numbers for the relative concentrations of oxygen, nitrogen, etc in
> air.
>
> If ambient pressure is P and vapor pressure is PW, what's the partial
> pressure PA of the rest of the ordinary atmospheric gasses?
>
> If this atmospheric partial pressure is PA, what's the partial
> pressure PO of oxygen?  Nitrogen?  Argon?  CO2?  etc.
>
> Given pressure and temperature for each fraction separately, what does
> Boyle's law say about the density of each fraction?
>
> Given the density of each fraction, what's the density of the mixture?

Global warming is evaporating water at an accelerating rate. That is
the heart of my heavy air theory. Bigger and deeper snow storms. Heavy
rains bringing down mountains.Its taking place as I type. Glad I have
invented my barrel sail boat. It can also be used in the snow,and
ice. TreBert Hope you all watched NOVA last night. Hope you all do
not listen to the BS put out by Exxon Molil.
From: Uncle Al on 18 Feb 2010 10:17
Eeee wrote:
>
> Please,
>
> how to calculate the density of (saturated) moist air which include
> condensed water.
>
> Thanks in advance.

Weight-averaged molecular weight, temperature, pressure. Given the
mass of 22.4 liters of gas, find the density.

--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz4.htm
From: jimp on 18 Feb 2010 12:19
Eeee <skriveno(a)hotmail.com> wrote:
> Please,
>
> how to calculate the density of (saturated) moist air which include
> condensed water.
>
> Thanks in advance.

Most people wouldn't, they'd just look in up in a table or use an on-line
calculator.

If, however, it is a homework problem, you're screwed and have to go read
up on how the tables/calculators are made.


--
Jim Pennino

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