What is the definition of sublimation in physical science?

Sublimation is defined as the process by which a solid changes directly into a gas without passing through the liquid phase. This phenomenon occurs under specific conditions, typically involving low pressure and/or high temperature. An example of sublimation is dry ice (solid carbon dioxide) transitioning directly to carbon dioxide gas when it is exposed to atmospheric conditions, without first melting into a liquid. Understanding sublimation is essential in the study of phase changes and the behavior of materials under different physical conditions. The process uniquely bypasses the intermediate liquid state, which distinguishes it from other phase changes.