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Question
Which of the following binary mixtures will have same composition in liquid and vapour phase?
(i) Benzene - Toluene
(ii) Water-Nitric acid
(iii) Water-Ethano
(iv) n-Hexane - n-Heptane
Solution
(ii) Water-Nitric acid
(iii) Water-Ethano
Explanation:
Non-ideal solution mixtures with same composition in liquid and vapour phase are azeotropes. Water-nitric acid has maximum boiling azeotrope and water-ethanol has a minimum boiling azeotrope.
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