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Which one of the following aqueous solutions will exhibit highest boiling point ? (A) 0.01M Na2SO4 (B) 0.01M KNO3 (C) 0.015M urea (D) 0.015M glucose?
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Which one of the following aqueous solutions will exhibit highest boil...
Von't haff factor for Na2SO4 is 3.ie.it has max. no. of particles.Na2SO4-->2Na^+ + SO4^-.So, it has highest b. p
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Which one of the following aqueous solutions will exhibit highest boil...
A
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A system of greater disorder of molecules is more probable. The disorder of molecules is reflected by the entropy of the system. A liquid vaporizes to form a more disordered gas. When a solulte is present , there is additional contribution to the entropy of the liquid due to increase randomness. As the entropy of solution is higher than that of pure liquid, there is weaker tendency to form the gas.Thus , a solute (non volatil e) lowers the vapour pressure of a liquid, and hence a higher booing point of the solution Similarly, the greater randomness of the solution opposes the tendency to freeze. In consequence, a lower the temperature must be reached for achieving the equilibrium between the solid (frozen solvent) and the solution . Elevation of B.Pt. Tband depression of F.Pt. Tfof a solution are the colligative properties which depend only on the concentration of particles of the solute, not their identity.For dilute solutions, Tband Tfare proportional to the molality of the solute in the solution.The vaues of Kb and Kf do depend on the properties of the solvent. For liquids, is almost constant . [Troutans Rule , this constant for most of the Unassociated liquids (not having any strong bonding like Hydrogen bonding in the liquid state) is equal to 90J/mol. ] For solutes undergoing change of molecular state is solution (ionization or association), the observed T values differ from the calculate ones using the above relations. In such situations, the relationships are modified as Where i = Vant Hoff factor, greater than unity for ionization and smaller than unity for association of the solute molecules.Q.Depression of freezing point of which of the following solutions does represent the cryoscopic constant of water?

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Which one of the following aqueous solutions will exhibit highest boiling point ? (A) 0.01M Na2SO4 (B) 0.01M KNO3 (C) 0.015M urea (D) 0.015M glucose?
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Which one of the following aqueous solutions will exhibit highest boiling point ? (A) 0.01M Na2SO4 (B) 0.01M KNO3 (C) 0.015M urea (D) 0.015M glucose? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Which one of the following aqueous solutions will exhibit highest boiling point ? (A) 0.01M Na2SO4 (B) 0.01M KNO3 (C) 0.015M urea (D) 0.015M glucose? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following aqueous solutions will exhibit highest boiling point ? (A) 0.01M Na2SO4 (B) 0.01M KNO3 (C) 0.015M urea (D) 0.015M glucose?.
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