Pure water boils at 373 K and nitric acid at 359 K. The azeotropic mixture of water and nitric acid — Solutions and Colligative Properties Chemistry Question

💡 Solution & Explanation

Since the mixture is azeotropic, the liquid and vapour phases have the exact same composition at its boiling point (393.5 K). Therefore, during distillation, both components distill over together in the same composition as they are present in the liquid mixture, without any separation.