25-10-11, 03:49 PM
Join Date: Jun 2011
Location: The United States of America
OK, so there's three syringes. All of them exist at room temperature under one atmosphere of pressure.
First contains 50mL of nitrogen.
Second contains 50ML of oxygen.
Third contains 25mL of carbon dioxide.
You force the oxygen and carbon dioxide into the syringe containing nitrogen. A syringe is basically a container.
Find the pressure in terms of atmospheres. The answer is 2.5, I know this, but how do I calculate it? I need to understand this logic desperately. I know about PV=nRT, but I don't think that would help in this situation because the pressure is in atmospheres, and the number of moles is not given, and the temperature in kelvin is not given. No, Kelvin has not been introduced to my class yet. And no, I don't have a textbook I can rely on. We don't have a textbook. Just our heads. This is why I struggle in this class!
Atom < Molecules < Organelle < Cell < Tissue < Organs < Organism < Ecosystem < Planet < Solar System < Galaxy < Universe
Everything is part of something bigger. Even you.
Last edited by New Evolution; 25-10-11 at 03:52 PM..