Assess the following statements about fractional distillation. Determine which are TRUE/FALSE

a. Multiple vaporization-condensation cycles are needed to purify samples of relatively close boiling points.
b. The column efficiency of a fractionating column can be assessed by the HETP
c. With every condensation-vaporization cycle, the vapors become enriched in the higher boiling point component
d. A fractionating column is part of the apparatus set-up

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oeerivona oeerivona · Answer 1 · 2022-03-22T17:24:29+01:00

The assessments of the given statements on the nature of the fluids and

the fractional distillation processes are as follows;

a. TRUE

b. TRUE

c. FALSE

d. A fractionating column is a glass piece that contains metal pieces or glass beads

Option a.

Multiple vaporization-condensation cycles enhances the separation of

the components of the mixture;

Thereby enabling purification of the samples that have boiling points

that are close.

Option a is therefore; TRUE

a. Multiple vaporization-condensation cycles are needed to purify samples of relatively close boiling points. TRUE

Option b.

The Height Equivalent to Theoretical Plate, HETP, indicates the

efficiency of the separation, and the fractionating column.

Therefore, option b. is TRUE

b. The column efficiency of a fractionating column can be assessed by HETP. TRUE

Option c.

After every condensation-vaporization cycle, the condensate contains

more of the more volatile, component and the vapor be comes enriched

in the lower boiling point component.

Therefore, option c is FALSE

c. With every condensation-vaporization cycle, the vapors become enriched in the higher boiling point component. FALSE

Option d.

d. The location of a fractionating column is placed vertically between the

mixture to be separated and the 'Y' adaptor, and consist of a straight

tube containing pieces of metals or glass beads.

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