How much energy in joules does a 12 gram CO2 cartridge?? Need this info for an engineering project. Thanks

Originally posted by fjcruiser
How much energy in joules does a 12 gram CO2 cartridge?? Need this info for an engineering project. Thanks

Don't know that number but I do know its enough to drag a lead line several hundred feet through medium diameter conduit so I could pull wire all day.

:D

Glad I could help :rolleyes:

Originally posted by fjcruiser
How much energy in joules does a 12 gram CO2 cartridge?? Need this info for an engineering project. Thanks

Umm, if you're in engineering, isn't it your fawking job to figure it out? Quit trying to get us to do your work, ya lazy fawker!:flipoff2:

Originally posted by Pavemen


...so I could pull MY wire all day.

Fixed it for ya!! :flipoff2:

OK, I don't have a CRC or a thermodynamic table here, but I can give you some hints.

Carbon has an atomic mass of 12
Oxygen 16*2=32

32+12=44
12/44=0.27moles of carbon dioxide in 12 grams. It will expand to occupy 6.13 litres at STP.

As I don't know the pressure, nor the amount of energy released when changing states, that's all I can give you here. Look in a physical chemistry text as this is a classic example used to illustrate the Joule-Thompson effect.

Peace,
Paul

Uggh....PChem is the devil...

Don't know either, my book is at home

Eggsactly! PChem (well, actually the math pre-req) is why it took me nine years to finish my chemistry degree.

Peace,
Paul