How Do Multiple Gases Affect Pressure When Compressed into a Liquid?

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The discussion focuses on the behavior of gases, specifically nitrogen and oxygen, when compressed into a liquid. It highlights that when air is compressed in a container, the pressure increases until the gases begin to liquefy. However, at 20 degrees Celsius, none of the gases present in air can be condensed into a liquid due to their critical pressures being above the applied pressure. The conversation raises questions about how the presence of multiple gases affects the overall pressure in the container during this process. Ultimately, the gases remain in vapor form, regardless of the pressure applied at that temperature.
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As we all know, the air we breath is made up of appox... 78% Nitrogen ... 21% Oxygen ... and then traces of other random things.

Lets consider that only the oxygen and nitrogen exist so that we neglect the other chemical traces.

If I were to fire up a compressor that pumps outside air into a container. we raise the pressure of the container until eventually the pressure stops to increase because the gas starts to form a liquid. But how does there being two chemicals effect the pressure of the tank. does one of the chemicals start to become a liquid but the vapor pressure of the tank continue to rise until the next chemical can become a liquid?

Out of all of the chemicals considered to be in the air (Nitrogen, Oxygen, Neon, Argon, CO2...etc.) What will become a liquid first at 20 degrees celcius?
 
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None of them. They are all above their critical pressures and can't be condensed at 20 C no matter how much pressure is applied.
 
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