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Diagram of Reversible Expansion

Posted: Sun Jan 28, 2018 4:37 pm
by Julia Ward 2C
On the diagram of isothermal reversible expansion from lecture on Wednesday (1/24/18) it said that one side of the piston had an ideal gas, and one side was a vacuum. What exactly is a vacuum (and what does it entail/mean in the diagram)?

Re: Diagram of Reversible Expansion

Posted: Sun Jan 28, 2018 4:40 pm
by Lourick Bustamante 1B
A vacuum is a volume that encloses little or no matter. In other words, it is a region that has a gaseous pressure much lower than that of atmospheric pressure---so that's what it represents in the system with the ideal gas that we were shown in class!

Re: Diagram of Reversible Expansion

Posted: Sun Jan 28, 2018 10:48 pm
by mayapartha_1D
A vacuum is a space that has no matter! For example, space is a vacuum because nothing can exist in that space. Because its pressure is lower, work will probably be done on that part of the system!

Re: Diagram of Reversible Expansion

Posted: Wed Feb 07, 2018 5:23 pm
by Amelia Georgius 1K
A vacuum is a space that does not have any matter in it, not even air. Space is a vacuum