Physical Chemistry
Solutions Solutions
Solution of water in ethanol form azeotropic mixture when ethanol is 96% by mass. Normal boiling point of C₂H5OH() is 78.6°C and H₂O(t) is 100°C then select correct statements.
I. Normal boiling point of azeotropic mixture is 78.7°C.
II. If XC₂H5OH = 0.50 then we can obtain only pure H₂O(l) by distillation.
III. If XC₂H5OH = 0.98 then we can obtain only pure C₂H5OH by distillation.
IV. Normal boiling point of azeotropic composition can be less than 78°C.
V. Solution may form minimum boiling azeotropes.
O I, III, II
O II, III, IV, V
O III, IV, V
O I, II, IV, V
