Replies to post #186481 on Biotech Values

[exwannabe]

OT: Re deflategate

Even if the balls were properly inflated at room temp, then later measuered at 35F or so, that would be less than a 1% delta T (you must use absolute temp here). And thus could only explain a 1% under pressure.

The balls were more like 20% light.

Good try though, I thought about the same issue the other day :-)

[poorgradstudent]

OT: Deflategate

From my calculations, assuming mol of air is constant and volume is essentially constant, a ball inflated to 12 PSI at 72°F, or 22°C, would deflate to 11.1 PSI at 32°F, or 0°C.

Deflategate is a 2 PSI difference? If so, the balls would have had to be inflated at significantly higher than room temperature for the Ideal Gas Law to explain it (provided I've made no calculation mistake).