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Old 2008-08-28, 22:25   #4
ATH's Avatar
Dec 2003

C3E16 Posts

It seems ok to me. Remember that Molar mass: M = m * NA. Insert that and k=R/NA in vp and the 2 equations are the same.

The last two equations implies that N*k = n*R which at first glance looks wrong. But N is not Advogadros constant it is the actual number of molecules:
So N = n*NA, and if you insert above:
n*NA*k = n*R or k = R/NA , which is the defenition of k.

Edit: Ops I was too slow :)

Last fiddled with by ATH on 2008-08-28 at 22:28
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