17 Questions
What is the purpose of steam distillation?
To separate heat-sensitive components in a mixture
How are vapours collected in the distillation process?
By passing steam through the mixture
In vacuum distillation, why are high-purity samples obtained?
Because compounds decompose at high temperatures
Why is steam used in steam distillation instead of direct heating?
Direct heating damages heat-sensitive components
What is the main purpose of using fractional distillation?
To separate liquids with similar boiling points
What happens when the vapour pressure of a component equals the surrounding pressure?
The component evaporates into a gas
How does a fractionating column aid in fractional distillation?
By allowing for multiple vaporization-condensation cycles
Why is vacuum distillation used for separating mixtures with very high boiling points?
To decrease the pressure in order to lower boiling temperatures
What is a common application of fractional distillation in industries?
Separating components of crude oil like gasoline and diesel
How does fractional distillation compare to simple distillation in terms of effectiveness?
Fractional distillation is more effective when boiling points are close
What role does a condenser play in the distillation process?
Condensing vapors back into liquid form for collection
What is the principle behind distillation?
Difference in boiling points of liquids
Which type of distillation involves heating the liquid mixture to its boiling point and immediately condensing the resulting vapors?
Simple distillation
What is the minimum difference in boiling points required for simple distillation to be effective?
25°C
In the distillation process, which component evaporates faster if the boiling point difference is considerable?
The more volatile component
How does a condenser contribute to the distillation process?
It aids in condensing the vapors back into liquid form
Which pair of compounds can be effectively separated by simple distillation?
Acetone (boiling point 56°C) and Benzene (boiling point 80°C)
Learn about the purification of liquids through the process of distillation in Experiment 4 at the College of Pharmacy. Understand the principle behind distillation and how it separates mixtures based on boiling points. Explore different types of distillation techniques.
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