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From: ark@alice.UucP (Andrew Koenig)
Newsgroups: net.sci
Subject: Re: unexplained phenomenon
Message-ID: <4791@alice.UUCP>
Date: Fri, 10-Jan-86 18:03:27 EST
Article-I.D.: alice.4791
Posted: Fri Jan 10 18:03:27 1986
Date-Received: Sat, 11-Jan-86 07:20:30 EST
References: <836@aluxe.UUCP>
Organization: Bell Labs, Murray Hill
Lines: 7

Why would a bottle of soda freeze almost instantly when opened?
One possibility is that when the gas was released from the bottle,
it took some energy with it, reducing the temperature of the remainder.

Have you ever used a CO2 cartridge to carbonate water?  If you have,
you'll recall that when you pick up the spent cartridge afterwards,
it is extremely cold.  This is the same phenomenon.