At 06:53 PM 10/19/2015, Angus Gordon wrote: >Thanks David, I've been using a rule of thumb of 1% per 5F for a >long time but I don't know where it came from. Michelin perhaps. >Normally I only use it to overinflate when headed to a cold >destination. Kept me out of the weeds so far... That's likely more accurate. It's certainly accurate to whatever degree over a wider temperature range, as it understands about it being proportional. I believe the Ideal Gas Law says for equal volume, pressure change of 1/273 per degree C (or for equal pressure, volume change of 1/273 per degree C). Real gases get sulky and turn liquid at some point... Yrs, d |
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