4/4/2019 - 9:19 AM

Distillation, evaporation, etc

What Is Distillation?
Distiallation is the process of purifying a liquid by successive evaporation and condensation.
The process of distillation begins with heating a liquid to boiling point. The liquid evaporates, forming a vapor. The vapor is then cooled, usually by passing it through pipes or tubes at a lower temperature. The cooled vapor then condenses, forming a distillate. The distillate is a purified form of the original liquid. When the liquid evaporates, many impurities are left behind, so they are not present in the distillate. 

What is Evaporation?
Evaporation is the process of a substance in a liquid state changing to a gaseous state due to an increase in temperature and/or pressure.

What is Condensation?
Condensation is the process by which water vapor in the air is changed into liquid water. 
Condensation is the change of the physical state of matter from gas phase into liquid phase, and is the reverse of vapourisation.

Jeff has a master's in engineering and has taught Earth science both domestically and internationally.

Clouds form when water vapor in the atmosphere rises and meets cool air. The cool air causes the water to then condense into droplets. The same process of condensation is at work during distillation.