Distillation is that the method of separating the elements or substances from a liquid mixture by victimisation selective boiling and condensation. Dry distillation is that the heating of solid materials to provide aerosolized product (which might condense into liquids or solids). Dry distillation might involve chemical changes like fractionation or cracking and isn’t mentioned underneath this text. Distillation might lead to basically complete separation (nearly pure components), or it’s going to be a partial separation that will increase the concentration of hand-picked elements within the mixture. In either case, the method exploits variations within the relative volatility of the mixture’s elements. In industrial applications, distillation may be a unit operation of much universal importance however it’s a physical separation method, not a chemical change.