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Old Nov 20th 2018, 10:15 AM   #1
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Heliumgas pressure

Hello! Id like some help solving this:

In a 40l gasbottle there is helium in its normal state. With a constant temperature, 5 g of helium is added to the bottle. What is the new pressure?
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Old Nov 20th 2018, 11:10 AM   #2
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Can I assume that by "normal state" you mean "standard temperature and pressure"
(rather than normal state as opposed to superfluid, or plasma, or...)

If so this looks like a calculation of ideal gas and molar volumes...

work out the volume occupied by 5g of helium (at standard conditions)
and then work out how the pressure will change if you squeeze this extra gas into the container.
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Old Nov 20th 2018, 11:47 AM   #3
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Hi! Yes I have figured out that I should start off with pV=nRT. I'm not quite sure where to go from there, nor do I know how I can figure out n
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Old Nov 20th 2018, 01:34 PM   #4
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Hi, Here are three ITEMS that might be of interest to you.

Using the Ideal Gas Equation | THERMO Spoken Here!

Fuel Cell Proportions | THERMO Spoken Here!

Victor Regnault | THERMO Spoken Here!

Good luck with your studies...

TSH
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Old Nov 21st 2018, 08:29 AM   #5
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Thank you! Are you or is anyone able to show exactly how to calculate this?
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