I think the oxygen undergoes a phase change from liquid to solid, also..How much heat do you need to remove in order to change oxygen at 39 degrees C to -183 degrees C?39C = 339K, at this temperature, the specific heat of Oxygen is 0.934kJ/kgK.
To remove 222 degrees, you would need to remove 207.3 kJ/kg.
You may want to check the info on the phase change, think:gas to liquid. Solid Oxygen (not to be confused with solidox, an explosives ingredient and welding concoction) only happens within less than one degree of absolute zero (basically, never.)
Then you'll probably need to find out how much a kg of air weighs. You'll need the molecular weight of O2 which is (roughly) 32g/mol. We'll assume that your pressure is at 1 atm (sea level air pressure) and of course, you've given us an initial temperature.
After we find the number of moles (1000g)(mol/32g)=31.25mol
Therefore the equation
PV=nRT can be utilized.
(1)(Volume) = (31.25)(0.0821)(339)
Therefore, the volume of the 1kg O2 is roughly 869.7 Liters
So to answer your question: It takes 207.3 kJ per 869.7 Liters (of the gas at it's original temperature) .. or 283 J per Liter
... but that's probably more than you wanted to know.How much heat do you need to remove in order to change oxygen at 39 degrees C to -183 degrees C?This question can be answered, but not as it is. How much oxygen?
Also, it would start out as a gas, so there would be two phase changes. 39C is just over 100F (102.2), and oxygen is definitely a gas at that temp, because I breathe it.How much heat do you need to remove in order to change oxygen at 39 degrees C to -183 degrees C?As much as it takes
