Thermodynamics of dissolution. Below we provided the Notes of Class 12 for Chemistry. 11. Explain the different types of solution. Such properties are It is expressed as: When a solution obeys Raoult’s law over the entire range of concentrations it is called an ideal solution. These notes are based on latest CBSE syllabus and are helpful for quick revision of the chapter. Very helpful notes for the students of 2nd year to prepare their paper of Chemistry according to syllabus given by Federal Board […] The spontaneous flow of solvent molecules from a dilute solution into a concentrated solution when the two are separated by a perfect sernipermeable membrane is called osmosis. The following notes for class 12 chemistry will cover Types of Solutions, Expressing Concentrations of solution, Solubility, Vapour Pressure of Liquid Solutions, Ideal and Non-ideal Solutions, Colligative Properties and Determination of Molar mass and Abnormal Molar Masses among other topics. These formulas would not only help the student to achieve a high score in school exams, but also in CBSE Class 12 Chemistry Board Exam. 19. Explain the role of molecular interaction in a solution of water and alcohol? Anand Meena . (b) Elevation of boiling point, In case of association, observed molar mass being more than the normal, the factor ‘T has a value less than one. On the basis of number of components a solution of two components is called binary solution. Naturally, if the stakes are so high, the pressure would be at its peak given the level of competition out there. SHARES. Now Let’s start the chapter 2 chemistry [Solution] important topic and question for students of class 12th. The substances forming the solution are called components of the solution. C is the concentration of solution (a) The solution shows positive deviation from Raoult’s Law if its vapour pressure is higher than that predicted by Raoult’s Law. 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