Can Extreme Pressure Turn Gases into Liquids or Solids?

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SUMMARY

Extreme pressure can indeed convert gases into liquids or solids, as demonstrated by the phase behavior of substances like water and nitrogen. When pressure is applied to water vapor, it transitions to liquid water and, with further pressure, can become ice. In the case of liquid nitrogen, the pressure at room temperature must be evaluated against its phase diagram to determine the boundary conditions between liquid and solid states. Understanding these principles is essential for manipulating states of matter effectively.

PREREQUISITES
  • Phase diagrams of substances
  • Basic thermodynamics principles
  • Understanding of gas laws
  • Knowledge of nitrogen properties at varying temperatures and pressures
NEXT STEPS
  • Study the phase diagram of nitrogen to understand its state transitions
  • Research the effects of pressure on water and other common substances
  • Learn about the Clausius-Clapeyron equation for phase changes
  • Examine real-world applications of high-pressure physics in material science
USEFUL FOR

Students in physics or chemistry, researchers in material science, and professionals working with cryogenics or high-pressure systems will benefit from this discussion.

toochaos
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im wondering in theory couldn't you put so much presure on a gas that the molocules couldn't move therefore creating a liquid or a solid ( i realize this would take a lot of pressure) but would it result in a liquid or no??
 
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Of course, this happens all the time. Just look at a phase diagram for a substance, like water:

http://www.lsbu.ac.uk/water/phase.html

If you increase the pressure on water vapor while maintaining its temperature, it'll turn first into water, then into ice.

- Warren
 
If I have liquid nitrogen contained in an extremely strong sealed container at room temperature, should I assume that the pressure is right at the boundary between liquid and solid nitrogen? If this is not the case, then how do I determine the pressure (quasi-theoretically)?

phase: liquid (i.e. density >> N2 gas at rm. temp.)
temperature: 300 K
pressure: ?
 

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