Sublimation is the change in phase from a solid to a gas. It is important to note that no liquid phase is present in sublimation.Continue Reading
Sublimation occurs at temperatures below a substance's 'triple point'. The triple point is an instant in which all three phases of matter exist in equilibrium. Triple points are represented on phase diagrams. In sublimation the solid substance is heated to a point at which it turns to gas without becoming a liquid first.
Sublimation is used to purify substances in chemical processes. Usually the practice begins by placing a solid in a vessel and then heating it within a vacuum. The pressure and heat volatilize the solid, converting the compound into a gas. The impurities remain a solid in the vessel.
Sublimation is applied to the functions of dyeing and freezing. In dyes, the ink is vaporized by a heater and then cooled on the paper or fabric. As a result the color transfer is highly-defined and more easily controlled, making more intricate dying possible.
In freezers a combination of sub-zero temperatures and dry, arid air prevent frost from forming on the inside. This is managed by an internal thermostat and fan. Iodine crystals and carbon dioxide are common examples of sublimation as they sublimate at room temperature.Learn more about States of Matter
The phase of chlorine is dependent upon temperature and pressure, but it is a gas at room temperature and standard pressure. At standard pressure, chlorine liquefies at minus 29.15 degrees Fahrenheit and freezes at minus 149.76 degrees Fahrenheit.Full Answer >
Hydrogen's normal phase is a gas. It has a density of 0.08988 grams per cubic centimeter, and it is the most abundant element in the universe.Full Answer >
Sublimation is a phase change process in which a substance is taken directly from a solid to a gaseous state without becoming a liquid in between. One common example of sublimation is dry ice.Full Answer >
Sublimation is the scientific process in which solids are changed to gases without passing through the liquid phase. Sublimation occurs when temperatures and pressures are below the triple point. The triple point is the temperature and pressure at which substances can coexist in solid, liquid and vapor forms.Full Answer >