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If I had a quantity of this substance at a pressure of 2.00 atm and a temperature of -150C, what phase change(s) would occur if I decrease the pressure to 0.25 atm?
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If I had a quantity of this substance at a pressure of 2.00 atm and a temperature of -150C, what phase change(s) would occur if I decrease the pressure to 0.25 atm?

User Haytch
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The substance would undergo a phase change from a solid to a gas.

User Clopez
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