Originally Posted by jdhreiss
Nitro will not heat up and expand (like "wet" air)
I would love to see the source of this assertion. (Just sayin'
Both Boyle's and Charle's law of gases determine pressure of a "system" as temperature changes. It is the pressure exerted on the walls of a container by the molecular vibration caused by temperature. There is no mention in either equation of what the gas or mixture of gases actually consists of since at temperatures above liquidity, all gases (including water vapor) behave the same.
As to mining equipment tires, I have no idea why they put nitrogen in them verses any other gas, but I can tell you that temperature "stability" is not one of them.
In the following graphic, the volume is being changed and the temperature is fixed; thus pressure changes. In the case of tires, the volume is fixed and temperature changes causing pressure to change. The gas can be nitrogen or steam, it does not matter.
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW