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Topic: Pressure & Volume question?  (Read 3831 times)

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Offline Auroturtle

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Pressure & Volume question?
« on: March 06, 2011, 03:11:41 PM »
"A sample of helium gas occupies 2.65L at 2.10atm. What pressure would this sample of gas exert in a 1.50L container at the same temperature?"

So I use PV=K, 2.65L x 2.10atm = 1.50L x ??atm

=3.71 atm

The correct answer is 2.12 atm.... what did I do wrong?
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Offline Borek

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Re: Pressure & Volume question?
« Reply #1 on: March 06, 2011, 05:22:51 PM »
2.12 atm is not a correct answer, 3.71 atm is.
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Offline Auroturtle

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Re: Pressure & Volume question?
« Reply #2 on: March 06, 2011, 08:34:04 PM »
Tell that to my chemistry teacher =/
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Offline Auroturtle

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Re: Pressure & Volume question?
« Reply #3 on: March 07, 2011, 10:12:24 AM »
Anyone care to shed some light on this?
« Last Edit: March 07, 2011, 10:43:32 AM by Auroturtle »
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Offline DrCMS

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Re: Pressure & Volume question?
« Reply #4 on: March 07, 2011, 11:29:10 AM »
I agree with Borek and 3.71atm for the question as written.
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Offline Auroturtle

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Re: Pressure & Volume question?
« Reply #5 on: March 07, 2011, 11:34:29 AM »
lol I'm such a dunce, I mixed up the 2.10atm with 1.20atm ... no wonder I got it right the first time around... thanks anyway guys =]
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Offline billnotgatez

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Re: Pressure & Volume question?
« Reply #6 on: March 08, 2011, 11:13:12 AM »
he had a typo
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