At the critical temperature of 87.8 degrees carbon dioxide liquifies at 72.9 atmospheres. 72.9 atm is about 1071 PSI. In a cylinder of the gas mix C25 (25% CO2, 75% argon) at 70 degrees and 2000 PSI what state is the CO2 in? Is there liquid at the bottom of the cylinder? I know there is a gas mix leaving the cylinder but I don't know if the CO2 just boils off liquid at the bottom. I don't think it does, I think it remains a gas until the argon becomes a liquid. What's the answer and why? Thanks, Eric
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12 years ago