Quote:
Originally Posted by SSDiv6
Nitrogen does not have smaller molecules and it does not have anything to do with it. It is the chemical composition that is different. Nitrogen does not make tires run cooler. Nitrogen is an inert gas and non-reactive; it is a byproduct of a reaction.
Nitrogen inerting is used in aircraft to reduce the probability of residual fuel gases igniting in empty fuel tanks.
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SSDiv6 I stand corrected. The molecules of nitrogen and compressed air are about the same. Actually the leak rate between nitrogen and compressed air @ 30PSI is very small.
I did some experimentation at work where I used Hydrogen that was mixed with a 5% solution of nitrogen that made it inflamable. That is how I got the two confused. The hydrogen solution would find a hole as small as 1 X 10 to the minus 6. My statement on Helium stands. It will get through a hole 1 x 10 to the minus 4.