Talk:Gas laws
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Ideal gas and Gas laws are both currently stubs. They both deal with the same topic, as far as I can tell: Gas laws are laws of Ideal Gases, and Ideal Gases are hypothetical gases which obey those laws. Does anyone have objections to me merging the two & leaving one as a redirect? (and which one to choose as the main page?) -- Tarquin 04:59 Jul 30, 2002 (PDT)
Hmm... how about we axe everything under the summary? I mean, we really don't need brief summaries of two different random gas laws when there are individual entries for them. I think we should leave this up otherwise, because I think someone looking up "gas laws" wants a brief overview of various gas laws... maybe they're looking for one in particular, or wants to know the major ones. Have a link to ideal gases, sure, but not the whole page... anyway, my 2 cents. Lepidoptera 03:59, 16 July 2005 (UTC)
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[edit] Potential Inconsistancy?
Is it a contradiction between this article, where:
- p=const*T or p/T=const
and the Law of Charles and Gay-Lussac, where:
- T/V=const or V/T=const
or am I wrong? First version presumes V=const, the second p=const. Could someone explain this to me in here? Excuse my language but it's not my native. C4 10:57, 6 May 2004 (UTC)
There's no inconsistancy. There are three laws: Charles, Boyle's, and Gay-Lassac. In Charles's law, you assume that pressure is constant, and V1/T1=V2/T2. In Boyle's law, you assume that temperature is constant, and P1V1=P2V2. In Gay-Lassac's law, you assume that volume is constant, and P1/T1=P2/T2.
Someone got the brilliant idea that you could combine all these individual laws into one law, called the Combined Gas Law, which states that (P1V1)/T1= (P2V2)/T2 Lepidoptera
[edit] Graham's law
- Graham's law, named after Thomas Graham, states that the kinetic energy of two samples of different gases at the same temperature is identical.
I don't think that it says any such thing - see Talk:Graham's law. Cutler 13:38, July 14, 2005 (UTC)
Yeah, Graham's law is about diffusion... Lepidoptera 03:54, 16 July 2005 (UTC)
[edit] Boyle's Law
If an exhaust pump is connected to a fixed 100cm^3 flask, the volume of liquid swept out by the piston is 25cm^3 each stroke and the pressure in the vessel is originally 1 atm, what is the pressure in the flask after 2 strokes?
Homework question?
[edit] Use of SI units
I think the article should be converted to SI units. The official unit for pressure is Pascal, not atmosphere. The unit for volume is m^3, not liters.
[edit] Disputed
Do the units even matter as long as they are persistence throughout the equation on which one uses for each of the three "things"? In other words, the article needs to mention whether the units have to be in those mentioned for the laws to work. I don't think they do. Bayerischermann 01:49, 7 June 2006 (UTC)
- Quite right; I have made a suitable addition. --Runcorn 19:30, 7 June 2006 (UTC)
