question_answer 76)

  If two liquids A and B form minimum boiling azeotrope at some specific composition then (a) A?B interactions are stronger than those between A?A or B?B (b) vapour pressure of solution increases because more number of molecules of liquids A and 6 can escape from the solution (c) vapour pressure of solution decreases because less number of molecules of only one of the liquids escape from the solution (d) A?B interactions are weaker than those between A?A or B?B

Answer:

                  (a) If two liquids A and B form minimum boiling azeotrope at some specific composition then A?B interactions are weaker than those of A?A and B?B. It is due to the fact that in case of positive deviation, we get minimum boiling azeotropes whereas in case of negative deviation we get maximum boiling azeotropes.