Carbon dioxide is often sold in steel cylinders. Use the data given in Figure 11.12, top, to answer the following questions.
a. Describe what you would expect to see in the cylinder if it were transparent and at room temperature. Explain.
b. Suppose you have attached a pressure gauge to the cylinder to register the pressure within the cylinder. How would you expect the gauge to behave as you continue to use CO2 from the cylinder until you can no longer obtain any CO2 gas from it?
Figure 11.12
Phase diagrams for carbon dioxide and sulfur (not to scale)

Transcribed Image Text:

Critical point (31 C, 73 atm Solid Liquid Gas Triple point (-57 C, 5.1 atm) 1.0 78 C Temperature Triple point (151℃, 1290 atm) Rhombic Liquid 2 Gas Triple point Triple point (1 19℃ 6 × 10-5 atm) (95 C, 1 x 10-5 atm) Temperature-