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Bill, you beat me to it...
Nitrogen vs. Air
N2 has 3% lower molecular weight than "average" air
3% lower density (at same T & P)
2.8% lower viscosity
2.8% higher specific heat
Not much difference to get exited about. I found atomic radii, but not molecule size.
It doesnt seem like the dipole moment of water vapor would have any influence over what goes on inside a tire.
Does oxygen diffuse thru rubber faster than nitrogen, by lattice dislocations or anything obscure like that? I didn't know how to look that up.
Oxygen (especially ozone) would contribute to oxidation, but c'mon... when was that last time a tire rotted from the INSIDE? Seems like UV exposure to the outside would dominate tire degradation.
I see pressure swings due to temperature on a weekly basis, so I'm not going to get a bottle of N2 just so I can adjust tire pressures on saturday morning.
Posts in this Thread:
- Anyone use nitrogen in their tires??, -993-, Wed, 21 Jan 2009 21:38:56
- Anyone with Tire Pressure Monitor system?.., AlS, Thu, 22 Jan 2009 14:24:36
- Oxidation., dmz789abc, Thu, 22 Jan 2009 12:22:13
- Yes, 80%, all the time., LesH, Thu, 22 Jan 2009 10:26:32
- Car and Driver magazine a while back said . . ., nnsquared, Thu, 22 Jan 2009 07:54:03
- Snake oil!, Noel, Thu, 22 Jan 2009 05:27:40
- Re: Anyone use nitrogen in their tires??, C H Tay, Thu, 22 Jan 2009 01:55:48
- I tried that..., AlS, Wed, 21 Jan 2009 22:45:21
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