You don't need the whole phase diagram. All you need to know is the equilibrium vapor pressure of oxygen (as a function of temperature). You should be able to find this using google. If not, look in the handbook of chemistry and physics or the chemical engineers' handbook.pixelpuffin said:i need to know what pressure oxygen will liquefy at under various pressures but i can't find a phase diagram anywhere
any link phase diagram that shows pressures 0-50 atm would be useful
An oxygen phase diagram is a graphical representation of the different phases of oxygen at different pressures and temperatures. It helps scientists understand and predict how oxygen behaves under different conditions, such as changes in pressure or temperature.
The pressure range of 0-50 atm is the typical range of pressures that oxygen experiences in various environments on Earth. This includes atmospheric pressure at sea level (1 atm) and pressures found at higher altitudes or in pressurized containers.
At pressures below 1 atm, oxygen exists as a gas. As the pressure decreases, the molecules of oxygen become more spread out and have more space between them. This allows them to move around more freely and behave like a gas.
At pressures between 1-50 atm, oxygen can exist in two phases: gas and liquid. As the pressure increases, the molecules of oxygen become more tightly packed and can no longer move around freely. This causes the gas to condense into a liquid.
To liquefy oxygen at high pressures, it must first be compressed to a pressure greater than 50 atm. This forces the molecules to become even more tightly packed, causing them to condense into a liquid state. The liquid oxygen can then be stored or used for various purposes.