Solid \(\mathrm{CO}_{2}\) is called dry ice. It sublimes at an atmospheric pressure of \(-78.5^{\circ} \mathrm{C}\). The triple point of \(\mathrm{CO}_{2}\) is \(-56.6{ }^{\circ} \mathrm{C}\) at \(517.8 \mathrm{kPa} . \mathrm{CO}_{2}\) becomes a supercritical fluid at \(31^{\circ} \mathrm{C}\) and 7.487 MPa. Using these data, construct a phase diagram for \(\mathrm{CO}_{2}\) labeling all the regions of your diagram.

To construct a phase diagram for CO₂, follow these steps: 1. Draw axes for pressure and temperature, labeling them as "Pressure (P)" and "Temperature (T)". 2. Mark the given points on the diagram: sublimation point (-78.5°C, atmospheric pressure), triple point (-56.6°C, 517.8 kPa), and supercritical fluid point (31°C, 7.487 MPa). 3. Define and label the regions for solid, liquid, gas, and supercritical fluid phases of CO₂ using the marked points. 4. Draw the boundaries between different phases: the sublimation line between solid and gas regions, the vaporization line between liquid and gas regions, and the line separating liquid and supercritical fluid regions. The completed phase diagram will have labeled regions and points representing different states of CO₂.