In the absence of anything else, the live and neutral wires are exactly the same. Both carry current. You need a circuit, and that means a circle. The two wires form a circle, and in that circle is the power supply (usually a transformer on a pole or in a green case on the street) your load, and probably a switch. The two wires are just the two parts of a circle or loop at any given point.
Reflux is a distillation technique involving the condensation of vapors and the return of this condensate to the system from which it originated.he more reflux provided for a given number of theoretical plates, the better is the column's separation of lower boiling materials from higher boiling materials. Conversely, for a given desired separation, the more reflux is provided, the fewer theoretical plates are required.
Reflux is widely used in large-scale, industrial continuous distillation columns as well as in laboratory distillation apparatus setups.It is also used in laboratories to supply heat to reactions over a long period of time.s the mixture is heated and boils, vapor rises up the column. Some of the vapor cools and condenses on the glass platforms (known as plates or trays) inside the column and runs back down into the liquid below, thereby refluxing the upflowing distillate vapor.