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Vapour Pressure

Class 12 Chemistry के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ChemistryWhy is the heat of mixing nearly zero when an ideal solution forms?Class 12Chapter 01: Solutions4: Vapour PressureLevel 10MediumChemistryWhich statement is most suitable for identifying an ideal solution?Class 12Chapter 01: Solutions4: Vapour PressureLevel 9EasyChemistryIn an ideal solution, the partial pressures of components A and B are 45 kPa and 15 kPa, respectively. What is the mole fraction of B in the vapour phase?Class 12Chapter 01: Solutions4: Vapour PressureLevel 8EasyChemistryIf the liquid-phase mole fraction of component A is 0.30 and its pure vapour pressure is 200 kPa, what is its partial pressure in an ideal solution?Class 12Chapter 01: Solutions4: Vapour PressureLevel 8EasyChemistryIn which situation will the equilibrium vapour pressure of a liquid be properly defined?Class 12Chapter 01: Solutions4: Vapour PressureLevel 7EasyChemistryWhat is the most important difference between vapour pressure and rate of evaporation?Class 12Chapter 01: Solutions4: Vapour PressureLevel 10MediumChemistryIf the vapour pressure of a liquid is less than external pressure, what can be said about boiling at that temperature?Class 12Chapter 01: Solutions4: Vapour PressureLevel 7EasyChemistryWhich option is a correct unit of vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3EasyChemistryIf two identical solutions differ only in temperature, how will the vapour pressure of the solution at higher temperature compare?Class 12Chapter 01: Solutions4: Vapour PressureLevel 6EasyChemistryA liquid has very low vapour pressure. Which statement about its normal boiling point is more reasonable?Class 12Chapter 01: Solutions4: Vapour PressureLevel 7EasyChemistryFor a solution containing a non-volatile solute, what relation between relative lowering of vapour pressure and solute mole fraction follows from Raoult’s law?Class 12Chapter 01: Solutions4: Vapour PressureLevel 9EasyChemistryIn an ideal solution, pure vapour pressure of A is greater than that of B. Their liquid-phase mole fractions are equal. Which component will have the higher proportion in the vapour phase?Class 12Chapter 01: Solutions4: Vapour PressureLevel 10MediumChemistryWhy is it difficult to directly measure vapour pressure of a liquid in an open vessel?Class 12Chapter 01: Solutions4: Vapour PressureLevel 8EasyChemistryWhy does adding a non-volatile solute increase the boiling point of a solution?Class 12Chapter 01: Solutions4: Vapour PressureLevel 8EasyChemistryWhy does the boiling point of a liquid decrease when the external pressure is reduced?Class 12Chapter 01: Solutions4: Vapour PressureLevel 8EasyChemistryThe vapour pressure of a solution is 8% lower than that of the pure solvent. Assuming a non-volatile solute, what is the mole fraction of the solute?Class 12Chapter 01: Solutions4: Vapour PressureLevel 7EasyChemistryIf solute particles associate with each other, what happens to lowering of vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 11MediumChemistryWhy can lowering of vapour pressure due to an electrolyte be greater than the simple expected value?Class 12Chapter 01: Solutions4: Vapour PressureLevel 11MediumChemistryWhat is the main basis for calling relative lowering of vapour pressure a colligative property?Class 12Chapter 01: Solutions4: Vapour PressureLevel 9EasyChemistryA solution has solvent mole fraction 0.60 and pure solvent vapour pressure 120 kPa. Assuming a non-volatile solute, what is the solution vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 8Easy