The Phase Diagram for CO₂ Is Given Below $\circ$ C and 25 Atm Is Suddenly Brought to 1 Atm

question 89

Multiple Choice

The phase diagram for CO₂ is given below.The triple point is at 5.1 atm and 217 K.
What happens if carbon dioxide at -50 ^$\circ$ C and 25 atm is suddenly brought to 1 atm?

• A)The liquid and solid are in equilibrium.
• B)The solid melts.
• C)The solid and vapor are in equilibrium.
• D)The solid vaporizes.
• E)The solid remains stable.

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