Question 11 of 30 With carbon dioxide what phase change takes place when the temperature decreases from -40^circ C to -80^circ C at 2 atm? Carbon Dioxide Phase Diagram A. A solid changes to a liquid. B. A gas changes to a liquid. C. A gas changes to a solid. D A liquid changes to a solid.

Question

Question 11 of 30 With carbon dioxide what phase change takes place when the temperature decreases from -40^circ C to -80^circ C at 2 atm? Carbon Dioxide Phase Diagram A. A solid changes to a liquid. B. A gas changes to a liquid. C. A gas changes to a solid. D A liquid changes to a solid.

Answer 1

C. A gas changes to a solid.

Answer 2

Under 2 atm pressure, a temperature decrease from -40°C to -80°C for carbon dioxide facilitates the process of deposition, whereby a gas transitions directly into a solid. This is because, under these conditions, carbon dioxide does not exist as a liquid - the phase diagram of carbon dioxide depicts this clearly. Hence, the phase change that takes place is from a gas to a solid, implying that option C is the correct answer.

Question

Question 11 of 30 With carbon dioxide what phase change takes place when the temperature decreases from -40^circ C to -80^circ C at 2 atm? Carbon Dioxide Phase Diagram A. A solid changes to a liquid. B. A gas changes to a liquid. C. A gas changes to a solid. D A liquid changes to a solid.

Answer

Answer

Explanation