Question

Ethanol and water form minimum boiling azeotropic mixture .Why ?​

Answer 1

Answer:

Positive and negative azeotropes

A well-known example of a positive azeotrope is 95.63% ethanol and 4.37% water (by mass), which boils at 78.2 °C. ... Indeed, 78.2 °C is the minimum temperature at which any ethanol/water solution can boil at atmospheric pressure.