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Class 12 · Chemistry · Easy
→In 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 12 · Chemistry · Easy
→In which condition is the normal boiling point of a liquid defined?
Class 12 · Chemistry · Easy
→When the rates of evaporation and condensation become equal, what is established in a closed vessel?
Class 12 · Chemistry · Easy
→At the same temperature, which liquid will have lower vapour pressure?
Class 12 · Chemistry · Easy
→What is the main reason vapour pressure depends on temperature?
Class 12 · Chemistry · Medium
→Pure vapour pressures of components A and B are 100 and 60 kilopascal, respectively. If the mole fractions of both are 0.5, what is the total vapour pressure of the ideal solution?
Class 12 · Chemistry · Easy
→In an ideal binary solution, the mole fraction of component A is 0.3. What will be the mole fraction of component B?
Class 12 · Chemistry · Easy
→Which statement is correct about the relation between vapour pressure and boiling point?
Class 12 · Chemistry · Easy
→A solution has vapour pressure 15 percent lower than the pure solvent. In a dilute solution, what is the approximate mole fraction of solute?
Class 12 · Chemistry · Easy
→If the mole fraction of solvent is 0.6, what is the mole fraction of solute in a solution containing a non-volatile solute?
Class 12 · Chemistry · Easy
→At the same temperature, which will have higher vapour pressure: pure water or a dilute salt solution in water?
Class 12 · Chemistry · Easy
→In a solution, the mole fraction of solute is 0.2. For a dilute solution, what will be the approximate relative lowering of vapour pressure?
Class 12 · Chemistry · Medium
→If a solution shows negative deviation from Raoult’s law, what can be said about the attraction between molecules?
Class 12 · Chemistry · Medium
→If a solution shows positive deviation from Raoult’s law, how will its vapour pressure compare with the ideal value?
Class 12 · Chemistry · Medium
→Which solution is more likely to follow Raoult’s law ideally?
Class 12 · Chemistry · Easy
→The vapour pressure of pure solvent is 40 kilopascal and that of the solution is 36 kilopascal. What is the lowering of vapour pressure?
Class 12 · Chemistry · Easy
→If the amount of non-volatile solute is increased, what will be the effect on the vapour pressure of the solvent?
Class 12 · Chemistry · Easy
→What is the vapour-pressure-related reason for faster cooking in a pressure cooker?
Class 12 · Chemistry · Medium
→Why is correct measurement of vapour pressure difficult in an open vessel?
Class 12 · Chemistry · Easy
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