Chapter 13.4, Problem 27LC

Interpretation Introduction

Interpretation:

One practical use of sublimation is to be stated.

Concept Introduction :

Without going through the liquid state, sublimation is the process by which a substance moves straight from the solid to the gas state.

Answer to Problem 27LC

Sublimation is used for purifying the compound.

Explanation of Solution

Chemists utilize the sublimation process to clean up their compounds. Usually, a solid is warmed under vacuum in a sublimation equipment. The solid vaporizes and again condenses as a pure compound on a chilled surface at a lower pressure, leaving behind non-volatile residues.

For example, naphthalene and camphor are separated from non-volatile contaminants using this approach. When heated, naphthalene goes straight from a solid to a vapor without melting. The vapors will solidify after cooling.