Do Any Chemicals Undergo Reverse Phase Transitions?

AI Thread Summary
The discussion centers on the existence of chemicals that remain liquid under high pressure (above 1 atmosphere) but transition to solid form when exposed to low pressure (below 1 atmosphere). Participants explore the concept of reverse phase transitions, specifically inquiring whether any substances exhibit this behavior while maintaining a constant temperature. Water is mentioned as a relevant example, though the specifics of its phase behavior under varying pressures are not fully clarified. The conversation highlights the complexities of phase transitions in relation to pressure and temperature, emphasizing the need for further exploration of this phenomenon in various chemicals.
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Are there any chemicals that are liquid under high pressure (above 1 atmospheres) but solid when exposed to low pressures (below 1 atmosphere)? Are there any chemicals that have a similar reverse phase transition at any pressure with the solid extending down to vacuum?
 
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Water.
"Reverse phase transition?" Not really clear what you mean.
 
Bystander said:
Water.
"Reverse phase transition?" Not really clear what you mean.
As in having a liquid phase at a higher pressure than the solid phase while temperature is held steady.
 
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