Can a gas turn into a solid?

Solids can turn directly into gases without ever being a liquid. Carbon dioxide (dry ice) is a common example of this. read more

1. Making dry ice or solid carbon dioxide involves the removal of gaseous carbon dioxide from air and using cold temperatures and higher pressure causes the gas particles to skip the liquid phase and deposit into a solid to form a chunk of dry ice. 2. read more

A gas can turn into a solid if heat is removed from the system fast enough so that it does not transition through the liquid state. This process is called deposition and is the reverse of sublimation where a solid directly turns into gas. Examples include snow formation and deposition of soot in chimneys. read more

A solid can turn directly into a gas through a process called sublimation. In this instance, the solid vaporizes without going through the intermediary liquid stage. For example, in the water cycle, this would involve snow or ice turning directly into water vapor without going through the melting process. read more