Chronology | Current Month | Current Thread | Current Date |
[Year List] [Month List (current year)] | [Date Index] [Thread Index] | [Thread Prev] [Thread Next] | [Date Prev] [Date Next] |
-----Original Message-----questions.
From: Forum for Physics Educators [mailto:PHYS-
L@list1.ucc.nau.edu] On Behalf Of Folkerts, Timothy J
Sent: Friday, April 08, 2005 12:56 PM
To: PHYS-L@LISTS.NAU.EDU
Subject: Re: A "simple" physics problem?
OK, for the "air doesn't hold water" discussion, let me ask a
at
Suppose you have a 1 m^3 space filled with ~80% N2 and 20% O2
40C and 90% relative humidity. The mixture is then cooled to5C, at
which point the water starts to condense and falls out of thespace.
Which of the following would people be comfortable saying?did
a) the 1 m^3 of space has fewer water molecules in it than it
before.before.
b) the 1 m^3 of space is holding less water than it did
c) the 1 m^3 of atmosphere is holding less water than it didbefore.
d) the 1 m^3 of air is holding less water than it did before.answer it
Or you would phrase the question completely differently? Or
differently?think I'm
Tim Folkerts
P.S What's it the Mississippi River flow puzzle? I don't
familiar with that one._______________________________________________