Question

Suggest the possible methods of separation of liquid-gas mixtures. Explain each method with an example.

Answer 1

Separation of liquid-gas mixtures can be done by preferential liquefication followed by fractional distillation.

Preferential liquefaction:

• Preferential liquefication is used for the separation of gases on basis of liquefication.
• Liquefication is the method of converting gas into liquid by applying some pressure.
• The gas liquefaction will take below or at its critical temperature.
• The critical temperature is the temperature above which a gas can not liquefy whatever pressure may apply.
• After liquefying a gas it can be separated using fractional distillation.

Fractional distillation:

• It is the type of separation technique that is used to separate a mixture of liquid-based upon their boiling point.
• In this method distillation and condensation are repeated various times.
• This repeated process results in the separation of liquid.
• The substance with a lower melting point will separate first in another beaker.