Air Release Pressure Question

[Roma88]

Hi,

Strange question. If I filled a tank to 300 bar pressure, and then suddenly opened the valve to release all the air, would the pressure of the air released be 300 bars or over 300 bars?

I know some people may think that because the pressure is 300, the release pressure must be 300 too. But, if you have a 12 litre tank, then release it, all that pressure must escape through a little hole, so i cant help but think that the release pressure will be more than the tanks bar pressure.
What do you think?

Thanks.

 

[fluffy_the_octopus]

No, sadly, pressure is pressure. The gas can be accelerated through a small openning but it doesn't increase the pressure. It would be a pretty neat trick if it could be and it sure would make nitrox blending easier!