At 04:42 PM 10/30/2005 -0500, you wrote: >A recent discussion with a colleague left me looking for a formula to >calculate the temperature of a given gas as a function of volume. > >I understand PV=nRT, but what if I only change the volume and want to >calculate both the new temp and pressure? I expect there's an equation that >relates specific heat, temperature and volume, but I haven't been able to >find it with google (probably a bad choice of search terms), a little help? Try adding "adiabatic" to your search terms. Best regards, Spehro Pefhany --"it's the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com ->> Inexpensive test equipment & parts http://search.ebay.com/_W0QQsassZspeff -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist