Q. 334.4( 15 Votes )

Fractional distillation is suitable for separation of miscible liquids with a boiling point difference of about 25 K or less. What part of fractional distillation apparatus makes it efficient and possess an advantage over a simple distillation process. Explain using a diagram.

Answer :

Fractional distillation is a process to separate the volatile liquids. In the apparatus, a fractionating column is the most important part of the fractional distillation apparatus. This column has glass beads in it which provides a large surface area for the vapours to collide and lose energy so that they can be quickly condensed and distilled. Apart from the presence of bead, if the length of the column is increased, then it would also increase the efficiency. The vapours of high boiling liquid get condensed earlier (at a lower level).

The advantages of a fractionating column are as follows:
(i) The purity of the mixture is the main advantage of fractional distillation.
(ii) This method can separate the liquids with a boiling point difference about or less than 25 K.
(iii) During the process, both evaporation and condensation take place simultaneously.
(iii) A mixture (such as petroleum containing several components) can also be separated by the fractional distillation process.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
More on Mixture & SolutionMore on Mixture & SolutionMore on Mixture & Solution31 mins
Separation of mixtureSeparation of mixtureSeparation of mixture34 mins
Champ Quiz | About Colloidal SolutionChamp Quiz | About Colloidal SolutionChamp Quiz | About Colloidal Solution30 mins
Mixture & SolutionMixture & SolutionMixture & Solution38 mins
Are Elements and Compounds Types of Molecules?Are Elements and Compounds Types of Molecules?Are Elements and Compounds Types of Molecules?34 mins
Learn 5 Solid-liquid Mixture Separation Techniques!Learn 5 Solid-liquid Mixture Separation Techniques!Learn 5 Solid-liquid Mixture Separation Techniques!36 mins
Master NCERT Activities and Questions Based on ThemMaster NCERT Activities and Questions Based on ThemMaster NCERT Activities and Questions Based on Them47 mins
How to Distinguish Between Suspensions and Colloids??How to Distinguish Between Suspensions and Colloids??How to Distinguish Between Suspensions and Colloids??25 mins
Genius Quiz | Test Your Knowledge on Separation TechniquesGenius Quiz | Test Your Knowledge on Separation TechniquesGenius Quiz | Test Your Knowledge on Separation Techniques38 mins
Foundation | Solve NTSE's Previous Years Ticklish ProblemsFoundation | Solve NTSE's Previous Years Ticklish ProblemsFoundation | Solve NTSE's Previous Years Ticklish Problems44 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses