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Topic: What cause gas pressure?  (Read 53002 times)

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Offline Mitch

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Re:What cause gas pressure?
« Reply #15 on: August 05, 2004, 06:46:56 PM »
Greg's research deals with high pressures. I'm glad I no longer work in that building. ;)
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Offline gregpawin

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Re:What cause gas pressure?
« Reply #16 on: August 05, 2004, 09:22:31 PM »
Ahh its just hydrogen... it'll just go upwards real fast... just don't work on the floor above me.
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Offline Mitch

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Re:What cause gas pressure?
« Reply #17 on: August 06, 2004, 04:14:03 AM »
I did work above you.  ::)
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Re:What cause gas pressure?
« Reply #18 on: August 06, 2004, 09:05:55 AM »
Actually, I think it does.  When you are increasing temperature you are adding energy to the atom/molecule.  As the energy is absorbed, the electrons wind up having higher energy as well, so they will move up to a higher energy level.  Since those higher energy levels are further away from the nucleus, the atomic radius of those atoms will increase.  If you apply enough energy, the electrons will have so much energy that they will leave the atoms altogether.  This is how a plasma is formed.  (All the atoms in the middle of the sun have no electrons.  It's simply a very high temperature plasma).  


Ok i got it.
One more thing,does an IDEAL GAS effected by gravity.Does an ideal gas kept in container will exist equal pressure on the walls of container or more pressure at the bottom?


Offline gregpawin

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Re:What cause gas pressure?
« Reply #19 on: August 06, 2004, 10:15:14 AM »
In the real world yes, like any fluid on earth, there's more pressure on the bottom of the container.  However, when talking about ideal behavior of gases, we tend to neglect this.

So if you actually tried to model huge amounts of gas, you'd have to take that into account.
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Re:What cause gas pressure?
« Reply #20 on: August 07, 2004, 02:16:29 AM »
Thanks.But ironically you increased my troubles by giving the answer.I am an Indian,preparing for the entrance examination of Engineering.And we got the worst writers of CHEMISTRY and PHYSICS Books here in India.My book just contradicts your point.So for the concept i use International standard Books for Concepts.For Physics i got FUNDEMENTALS OF PHYSICS By Ressnick,Halliday and Walker[WILEY and sons PUBLICATION].Can you tell me a book for PHYSICAL and GENERAL CHEMISTRY which does not have pathetic concepts and wrong theories and the book is launched internationally so that it could be purchased here in India.And,no Ordering From ebooks or from other sites neither work nor i got a credit card.


Offline Mitch

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Re:What cause gas pressure?
« Reply #21 on: August 07, 2004, 06:21:27 PM »
Pauling's book General Chemistry would work well. It is really old, but these theories haven't changed in a long time. Plus all these modern books are based off his book anyways.
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Re:What cause gas pressure?
« Reply #22 on: August 08, 2004, 03:18:18 AM »
You mean this book ]]http://www.powells.com/cgi-bin/biblio?inkey=62-0486656225-0http://

I will try it from a good bookstore.
Thanks

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