From: Roy Mayeda (roy_mayeda@isd743.k12.mn.us)
Date: Tue Jan 14 2003 - 06:13:43 PST
Date: 14 Jan 2003 08:13:43 -0600 Message-ID: <977893173roy_mayeda@isd743.k12.mn.us> From: Roy Mayeda <roy_mayeda@isd743.k12.mn.us> Subject: Re: pinhole Limiting Reactant Demo
I think the balloon would only have to have a partial pressure of CO2 equal to that of the atmosphere to be in equilibrium (other factors being equal) rather than tons of it. I know nothing of the ability of CO2 to pass through rubber, though I was probably taught this information at one of our TI sessions. (Guess I should have more sympathy for students on exams.) If it is able to easily diffuse through rubber, we would expect a rapid decrease in volume as the partial pressures of the CO2 inside and outside of the balloon reach equilibrium.
Raleigh, I'll be looking for a job next fall as well, and in a more limited market -- western MN. Good luck on your search.
Roy Mayeda
Sauk Centre HS
Sauk Centre, MN
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