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The triple point of CO2 occurs at 5.1 atm and –56 °C. Its critical temperature is 31 °C. Solid CO2 iStates of Matter Chemistry Question

Question

The triple point of CO2 occurs at 5.1 atm and –56 °C. Its critical temperature is 31 °C. Solid CO2 is more dense than liquid CO2. Under which combination of pressure and temperature is liquid CO2 stable at equilibrium?

A.

10 atm and –25 °C

✓ Correct
B.

5.1 atm and –25 °C

C.

10 atm and 33 °C

D.

5.1 atm and –100 °C

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