| http://www.w3.org/ns/prov#value | - Quite a bit actually. nitrogen does expand and contract with temperature according to some silly law of physics like PV=NRT? (T is for temperature, R is a constant, n is the mass of the gas also a constant in a sealed tire, P is pressure, V is volume.) So if the temperature goes up, like when you are racing around a track @ 200 mph, the pressure and/or the volume increases porportionally.
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