Originally Posted by
DiabloScott
In nearly any scenario, all of the liquid CO2 will evaporate and the (final) pressure inside the tire will be the same as the (final) pressure inside the cartridge. The evaporation and expansion happen so quickly that there is no influence of outside temperature on the process.
Well of course the pressures will equalize, did I say otherwise? However, time is not a function of this process, other than the system itself acting as a heat pump. But the ambient Temperature (eg the "outside temperature") is very much a part of this and will indeed determine the final equalization pressure. Again PV = nrT. Note again that Pressure and Temperature are directly proportional. In other words, given a canister and a tire/tube of a fixed volume, the final equalized pressure will be lower in colder weather than it is in hotter weather.
HTH
zac