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I'm going highschool science right now, and I've to complete a task on associated with CO2 tension. Listed here is the info I know: -is a gas above -78 celsius -is a fluid when condensed (amount as yet not known) Wikipedia: At temperatures below −78 C, dry ice was directly from a gas to a white solid called by carbon dioxide changes via a process called deposition. Liquid co2 types only at pressures above 5.1 atm; at atmospheric pressure, it moves directly between your solid phase and sublimation was called by the gaseous phase in a process. Lots of websites I see are pretty darn ineffective with informative data on CO2, but this is exactly what I want when someone is kind enough to simply help. 1) Temperature versus Pressure in a (0.266 liter) container. 2) Pressure versus Volume (5.1 atm = 3) Just how to determine what proportion is fluid in a 9oz container. Also, SI units could be most useful if at all possible. Thanks!