Wednesday, September 20, 2017

gas laws - High pressure modification to the van der Waals equation


I get that a gas behaves non-ideally under high pressure and low temperature conditions. At high pressures, the density of a gas increases and attraction forces operate among molecules due to short intermolecular distance. This allows us to somehow modify the ideal gas equation. If a molecule is approaching the wall of container in order to collide, the neighbouring gas molecules soften their impact.


pideal=preal+an2V2


How was the term an2V2 derived? My thoughts about that term, n2V2 may be the extra pressure thats why the V lies on the numerator (inverse relationship)




No comments:

Post a Comment

digital communications - Understanding the Matched Filter

I have a question about matched filtering. Does the matched filter maximise the SNR at the moment of decision only? As far as I understand, ...