Sublimation Process and Applications Quiz

Sublimation Process

• Sublimation is the transition of a substance from the solid to the gas phase without going through the liquid phase.
• It occurs when the intermolecular forces between molecules are weak, allowing them to change directly from solid to gas.

Substances that Undergo Sublimation

• Iodine (I₂) is a common example of a substance that undergoes sublimation at standard pressure.
• Dry ice (frozen carbon dioxide) also sublimes at standard pressure.

Temperature during Sublimation

• During sublimation, the temperature of the substance remains constant, as heat energy is used to break the intermolecular forces, rather than to increase the temperature.

Applications of Sublimation

• One application of sublimation is in the production of frozen carbon dioxide (dry ice), which is used as a refrigerant and in cryogenic applications.
• Another application is in the preservation of food, where sublimation can be used to freeze-dry foods, removing moisture and preserving their structure and nutrients.

Test your knowledge about the sublimation process and its applications with this quiz. Learn about the substances that undergo sublimation, the temperature changes during sublimation, and its practical applications.