At what temperature can oxygen turn into liquid?
105897
Boiling point of oxygen 90.20 K (-182.95 °C, -297.31 °F)\n\nadditionally Melting point is54.36 K (-218.79 °C, -361.82 °F)
1046924
Oxyacetylene is simply a mixture of oxygen and acetylene that is used as a fuel for a welding torch.  It does not react together to form a single molecule, so if you're wondering what temperatures it goes into a liquid, you'd have to look at the individual molecules.\n\nOxygen is a liquid from -218.79 °C (-361.82 °F) to -182.95 °C (-297.31 °F)\n\nAcetylene is a liquid from -84 °C (-119.2 °F) to -80.8 °C (-113.44 °F)\n\nCheck the first source for more info on oxyacetylene.  I hope this helps  :)
872856
It will eventually melt at 2572C, and it will boil at 2850C.\n\nHeat does not cause it to react, typically.
1182386
Simple.\n\nH2O is liquid at room temperature because of two types of bonds it contains.  The first, between the H and O, is a polar covalent bond.  This bond is strong because of the relatively large electronegativity difference between H and O (2.2 vs 3.44).  Secondly, there are hydrogen bonds between the two hydrogens.  Both these bonds result in this peculiar property of H20.
770607
I do not think you can do this, even storing the oxygen as a liquid.\n\nLiquid oxygen has a density of 1.141 g/cm³.   The maximun mass of liquid oxygen that could be stored in one liter is \n\n1.141 g/cm³ * 1000 cm³/L = 1141 grams\n\n1141 grams * 0.00220 pounds/gram = 2.51 pounds.
501191
There is a formula...but this is much easier\n\nhttp://www.onlineconversion.com/temperature.htm
497055
The boiling Point of Nitrogen (temperature in which it changes from liquid to gas) is  -195.8 degrees celsius.\n\nHence, to convert nitrogen in the air (70%), you have to pass the air through a compressor to reduce pressure (a lot). This works because of the physics equation PV=kT (P = pressure, V= volume, T=temperature, k=constant).
1097232
Have you heard of boiling and freezing points. Each substance has a boiling and a freezing point there is a different one for each substance. The freezing point of H20 (hydrogen and oxygen) is 32 degrees Fahrenheit and the boiling point is 212 degrees Fahrenheit. Now these temperatures could be different if the water has anything else in it changing the molecular structure. Things like salt, calcium, ect. So in your bottle story....The gas (common air) which has things like helium, carbon and oxygen is on top and your water is on the bottom. This could get confusing but essentially when you shake it up you added other molecules into the water that have a lower or higher freezing point. Same idea as when you have a partially frozen bottle of water and you shake it up and it defrosts. It also has to do with the first law of thermodynamics...Energy can not be created or destroyed just transferred. So some molecules do not have enough energy to bond with one another but when you shake up the bottle it transfers energy allowing them to bond with one another. Hope I didn't confuse you too much.
1164067
Third Law Of Thermodynamics (I am studying that too)\n\nIt is impossible to reduce the temperature of any system to absolute zero by a finite number of operations.\n\nIf you are asking how much internal energy ice has at -273K, then the answer is zero.\n\nGood luck with this.
1183481
Pure water.  The ice will have to melt before it could boil.  Water doesn't go through sublimation
570305
yes! liquid oxygen and liquid hydrogen.  mix them together, light a match and stand back.
30270
In general, a gas turns into a liquid by cooling it.
745608
liquid...at 0 C it would be frozen and at 100 C it would be gas, since 75 is not yet boiling, the water would still be liquid
933014
All decent explanations so far; I hope I can add to what has already been posted.\n\nLiquid and Ice most definitely can exist at the same temperature and Ice can be and often does get colder than 0C.\n \nFirst of all the Triple Point of water is the pressure and temperature at which Ice, Liquid Water and Water Vapor exist at the same time in equilibrium.  Vapor is the right word, not steam although you can argue that the only time that Water Vapor and Steam are the same thing is at a very low pressure.  The Triple point of water only happens at a near perfect vacuum, 0.0063 ATM to be precise.\n\nAdding Salt to water will lower the freezing point, but then it isn't water anymore, it's salt water.  Even so, Liquid Salt Water and Ice Salt Water can also exist at the same place and time at the same temperature, slightly below 0C.  But let's stick to water.\n\nIce can easily be lower than 0 degrees.  Consider a bucket of water, liquid water sitting outside and the air temperature is -10C.  Little by Little, as the liquid reaches 0.0098 C, liquid starts to become ice.  The ice crystals form in the bucket, around the walls of the bucket and on the surface first.  The air is still -10C so the bucket, the liquid and the ice will keep getting colder.  The ice on the surface will drop to slightly below 0C but very slowly since it is still absorbing the heat of the not-yet-frozen water.  Eventually, the entire bucket of water will be frozen and will be just below 0C.  First the walls of the bucket will reach -10C (same as the air tempertaure).  The ice near the walls of the bucket and on the surface will reach -10C first, continually absorbing the heat energy from the relatively warmer ice near the center of the bucket.  Until finally, the entire bucket of ice is steady at -10C.  That is until the sun comes out or the day gets warmer.\n\n\nAnd by the Way, dry ice is not water, it's frozen CO2 (Carbon Dioxide)\n\nOne more thing, at a near perfect vacuum, you can actually cool liquid water to less than 0C without it freezing.  Never tried that but I did accidently freeze a beer last night...
1175672
Liquid oxygen is measured in pounds and gaseous oxygen in liters.  So the quickest method would be to ignite it.\n\nJust kidding. :-)\n\nIf you know the mass of something (for example, by being given its weight in pounds at "one g") and you want to know its volume (for example, in liters), then you need to also know the density, and that:\n\ndensity = mass divided by volume\n\nwhich you can solve for\n\nvolume = mass divided by density\n\nThe density of liquid oxygen at various temperatures and pressures you can look up.  An "I'm feeling lucky" search for density of liquid oxygen at Google takes you to\n\nhttp://www-safety.deas.harvard.edu/services/oxygen.html\n\nwhich gives the density at boiling point at one atmosphere as\n\nDensity, Liquid @ BP, 1 atm: 71.23 lb/scf\n\nThen Google for 1 cubic foot in liters to get\n\n1 (cubic foot) = 28.3168466 liters
177825
theoretically, at any temperature above absolute zero, a reaction can occur.  There are very few reactions that are likely to take place at that temperature, but none that are impossible.
194855
water food oxygen environment