How much pressure does water have to be in for it to phase change

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SUMMARY

Water undergoes phase changes primarily through variations in temperature and pressure. At room temperature, reducing the pressure in a vacuum causes water to boil, while solidification requires extraordinarily high pressure. The phase diagram available at LSBU illustrates the specific pressure-temperature combinations for water's phase transitions. Understanding these principles is crucial for manipulating water's state effectively.

PREREQUISITES
  • Understanding of phase diagrams, specifically for water.
  • Basic knowledge of thermodynamics, particularly the concepts of pressure and temperature.
  • Familiarity with the properties of water in different states (solid, liquid, gas).
  • Knowledge of vacuum systems and their effects on liquids.
NEXT STEPS
  • Study the LSBU phase diagram for water to understand pressure-temperature relationships.
  • Research the principles of thermodynamics related to phase changes.
  • Explore the effects of high pressure on water's state, including solidification.
  • Learn about vacuum systems and their applications in phase change experiments.
USEFUL FOR

Students in physics or chemistry, researchers in material science, and professionals working with fluid dynamics or thermodynamics will benefit from this discussion.

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I was wondering if it was possible to put water in a tube, and either add air pressure or put it in a vacuum and changee it's phase change? I herd at wikipediea that you can change the state of matter somthing is in by either changing the tempature or pressure that it's in.
 
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Well, if you take room temperature water and put it in a vacuum, it'll boil, yes. It won't solidify without extrordinarily high pressure, though. Check the phase diagram: http://www.lsbu.ac.uk/water/images/phase.gif
 
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You need to study a http://www.lsbu.ac.uk/water/phase.html" for water. This shows you pressure temperature combinations and the resulting phase.

Russ types faster then I do! beat by 1 minute. :biggrin:
 
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