Pure water boils at 373 k and pure nitric acid boils at 359 k the azeotropic mixture of water and nitric acid boils at T k. T=??
Answers
A solution that depicts a significant negative deviation from Raoult's law forms a maximum boiling azeotrope at a specific composition. Both water and nitric acid are an example of this class of azeotrope. This azeotrope combination includes an approximate composition of 68% nitric acid and 32% water by mass.
Thus, because of less composition of water T>359k. The composition is less due to the dependency of temperature which is intentionally proportional to the solvent part in the azeotropic mixture and in their solution the water part is less than T>359.
Mixture boils at a temperature greater than 359K.
Details:
Azeotropic mixture is the solution of two liquids that has the tendency to boil at constant temperature and their composition in the mixture never changes in both liquid and vapor state.The azeotropic mixture of pure nitric acid and water has tendency to show a negative deviation from normal behavior in accordance with Raoult's law. Also, this type of azeotrope has maximum boiling point (i.e) higher than the both the solute and solvent.
Hence, the boiling point of this type of mixture will be greater 359K.