What is the basic concept behind the technique of distillation? how and why does it work? be clear and specific?

Distillation is the way toward "isolating a blend of fluids or vapor blend of at least two substances into parts of wanted virtue by the expulsion of warmth." Distillation works since bubbling water can have more segments. 

Distillation is a procedure that can be utilized to isolate an unadulterated fluid from a blend of fluids. It works when the fluids have distinctive breaking points. Refining is generally used to isolate ethanol - the liquor in mixed beverages - from water.