Question

Identify the error in the given statements. Circle the incorrect word and write the correct word in the blank.

Sublimation is the process of separating a liquid from its solution by evaporating it and then condensing its vapor.

Answer 1

Sublimation:

• This is the phase transition of a substance directly from the solid to the gas phase without passing through the intermediate liquid phase.
• Sublimation is an endothermic process that occurs at temperatures and pressures below a substance's triple point in its phase diagram, which corresponds to the lowest pressure at which the substance can exist as a liquid.
• The reverse process of sublimation is deposition or desublimation, in which a substance passes directly from a gas to a solid phase.
• Sublimation has also been used as a generic term to describe a solid-to-gas transition (sublimation) followed by a gas-to-solid transition (deposition)

Distillation:

• This is the process of separating the components or substances from a liquid mixture by selective boiling and condensation.
• Distillation may result in essentially complete separation (nearly pure components), or it may be a partial separation that increases the concentration of selected components of the mixture.
• In either case the process exploits differences in the volatility of the mixture's components.
• In industrial chemistry, distillation is a unit operation of practically universal importance, but it is a physical separation process and not a chemical reaction.

Sublimation is the process of separating a liquid from its solution by evaporating it and then condensing its vapor.

Distillation is the process of separating a liquid from its solution by evaporating it and then condensing its vapor.