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Topic: When to use which formual  (Read 2512 times)

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Offline Ai

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When to use which formual
« on: August 21, 2008, 07:08:19 PM »
I was wondering when do use which formula:

KEavg = (3/2)kT

KEavg = (3/2)RT

Is the first one for fluids, and the bottom one for ideal gases?
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Offline enahs

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Re: When to use which formual
« Reply #1 on: August 21, 2008, 09:52:31 PM »
NA = Avagrados number

R= k ยท NA

k = R / NA


So you use one when you are talking about per molecule, and one when you are talking about per mole. Given the above information, which is which?

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