Why does the temp go below 0 Celcius when you let out pressured air

Subject: Why does the temp go below 0 Celcius when you let out pressured air

Date: Sat Jan 19 09:49:09 2002
Posted by Kristofer
Grade level: grad (science) School: Chalmers
City: Göteborg State/Province: No state entered. Country: Sweden
Area of science: Physics
ID: 1011451749.Ph

Message:


If you have high pressured air and let it out from a small opening. The 
surrounding area can go far below 0 C or 273 kelvin.  Why is it so?

Re: Why does the temp go below 0 Celcius when you let out pressured air

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