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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 does the vapour pressure of a solution decrease when a non-volatile solute is added to a liquid?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3EasyChemistryWhen equilibrium is established between a liquid and its vapour in a closed vessel, vapour pressure mainly depends on which factor?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4MediumChemistryIn numerical questions related to vapour pressure, what should be checked first?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4MediumChemistryWhy does the boiling point of a solution increase when a non-volatile solute is added?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5MediumChemistryIf a solution contains two volatile liquids and one has a very high pure vapour pressure, how will it affect the total vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5MediumChemistryWhy is the vapour pressure of pure solvent needed while measuring lowering of vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3EasyChemistryA liquid and its vapour are at equilibrium in a closed vessel. If temperature is suddenly increased, what happens to the rate of evaporation before a new equilibrium is reached?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4MediumChemistryIn a solution containing a non-volatile solute, the mole fraction of solvent is 0.85. If the vapour pressure of the pure solvent is 200 kilopascal, what is the vapour pressure of the solution?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3EasyChemistryIf the actual vapour pressure of a solution is higher than the value predicted by Raoult’s law, what may be the reason?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5MediumChemistryIf the actual vapour pressure of a solution is lower than the pressure predicted by Raoult’s law, what type of deviation is it?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3EasyChemistryAccording to Raoult’s law, what will be the value of p when x = 1?Class 12Chapter 01: Solutions4: Vapour PressureLevel 2EasyChemistryFor which of two liquids may the increase in vapour pressure with temperature appear more noticeable?Class 12Chapter 01: Solutions4: Vapour PressureLevel 4MediumChemistryIf adding a non-volatile solute causes only a small lowering of vapour pressure, what can be inferred about the amount of solute?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3EasyChemistryOn what basis is the order of lowering of vapour pressure decided?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5MediumChemistryIn an ideal solution, the partial vapour pressure of component A is 40 kilopascal and that of component B is 25 kilopascal. What is the total vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 2EasyChemistryIf a liquid attains vapour pressure equal to external pressure at a lower temperature, how will its boiling point be?Class 12Chapter 01: Solutions4: Vapour PressureLevel 2EasyChemistryThe vapour pressure of a solution is lower than that of the pure solvent. Which effect is directly connected with this?Class 12Chapter 01: Solutions4: Vapour PressureLevel 5MediumChemistryIn a solution, the lowering of vapour pressure is 5 kilopascal and the vapour pressure of the pure solvent is 50 kilopascal. What is the relative lowering?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3EasyChemistryIn which condition is the normal boiling point of a liquid defined?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3EasyChemistryWhen the rates of evaporation and condensation become equal, what is established in a closed vessel?Class 12Chapter 01: Solutions4: Vapour PressureLevel 3Easy