What is the direct vaporization of a solid without passing through its liquid state called?

1 Answer
Nov 3, 2016

Answer:

#"Sublimation"#

Explanation:

When a material sublimes, it undergoes the transition from the solid state directly to the gaseous state. A common material that sublimes at normal pressures is #"dry ice"#, i.e. #CO_2(g)#. In my very young days, I can remember ice cream sellers using blocks of dry ice to cool their ice creams; of course when the dry ice turned to gas it would not soak their stock.