Essential Chemistry for IGCSE - Particles And Purification (Section 10 - No. 35)
What is the primary purpose of the fractionating column in a fractional distillation apparatus?
To cool the vapor
To increase the surface area for condensation and re-evaporation
To speed up the distillation process
To collect the distillate.
Explanation
The fractionating column provides more surface area for the repeated condensation and re-evaporation of the vapors, allowing for more efficient separation based on boiling point.
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