Phase Diagram For Carbon Dioxide

A phase diagram shows the temperatures and pressures at which the various phases ie solid liquid and vapor of a substance can exist. For carbon dioxide and water are shown in figure 1.

Chemistry The Central Science Chapter 11 Section 6

This chemistry video tutorial explains the concepts behind the phase diagram of co2 carbon dioxide and the phase diagram of water h2o.

Phase diagram for carbon dioxide. Temperature pressure diagram s a t u r at i o n li ne. Sublimation curve vaporization curve triple point critical temperature and pressure. It is impossible to get any liquid carbon dioxide at pressures less than 511 atmospheres.

Sublimation curve vaporization curve triple point critical temperature and pressureof course the p and t values of are unique to carbon dioxide. Liquid carbon dioxide forms only at pressures above 51 atm. Liquid co2 can be produced only at pressures above 5atm.

However at low temperature andor high pressures the gas becomes a liquid or a solid. This video contains plenty of examples and practice. The triple point of carbon dioxide occurs at a pressure of 52 atm 3952 torr and 2166 k 564 o c.

The phase diagram for carbon dioxide shows the phase behavior with changes in temperature and pressure. The phase diagrams of water and carbon dioxide are compared here. Solid co2 is more dense than liquid co2.

The phase diagram for carbon dioxide the only thing special about this phase diagram is the position of the triple point which is well above atmospheric pressure. In these co2 phase diagrams pressure p and temperature t are usually the coordinatesthe phase diagrams usually show the p t conditions for stable phases. Solid co2 sublimes when heated.

Carbon dioxide is a gas at standard conditions. Consider this phase diagram for carbon dioxide. The critical point is 738 mpa at 311 c.

The phase diagram of co 2 has some common features with that of water. Of course the p and t values of are unique to carbon dioxide. In what phase is co 2 at 72 atm and 0 degree c.

Starting from the point described above what phase change would eventually result from a decrease in pressure. The phase diagram of co2 is similar to the phase diagram of water. The triple point of carbon dioxide is about 51 bar 517 kpa at 217 k see phase diagram.

Pressuretemperature phase diagram of carbon dioxide. At a temperature of 1975 k 785 o c the vapor pressure of solid carbon dioxide is 1 atm 760 torr. Y shape just shifted relative to one another.

Both phase diagrams for water and carbon dioxide have the same general.

Utilisation Of Carbon Dioxide For Electro Carburisation Of Mild