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Class 12 · Chemistry
→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
→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
→Which statement is correct about the relation between vapour pressure and boiling point?
Class 12 · Chemistry
→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
→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
→At the same temperature, which will have higher vapour pressure: pure water or a dilute salt solution in water?
Class 12 · Chemistry
→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
→If a solution shows negative deviation from Raoult’s law, what can be said about the attraction between molecules?
Class 12 · Chemistry
→If a solution shows positive deviation from Raoult’s law, how will its vapour pressure compare with the ideal value?
Class 12 · Chemistry
→Which solution is more likely to follow Raoult’s law ideally?
Class 12 · Chemistry
→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
→If the amount of non-volatile solute is increased, what will be the effect on the vapour pressure of the solvent?
Class 12 · Chemistry
→What is the vapour-pressure-related reason for faster cooking in a pressure cooker?
Class 12 · Chemistry
→Why is correct measurement of vapour pressure difficult in an open vessel?
Class 12 · Chemistry
→At the same temperature, one of two liquids evaporates faster. What is the correct conclusion about that liquid?
Class 12 · Chemistry
→If the solute in a solution is non-volatile, from where does the total vapour pressure mainly come?
Class 12 · Chemistry
→A volatile component has a pure vapour pressure of 120 kilopascal and a mole fraction of 0.25 in the solution. What is its partial vapour pressure?
Class 12 · Chemistry
→In an ideal solution, components A and B are both volatile. If the mole fraction of A increases, what happens to the partial vapour pressure of B?
Class 12 · Chemistry
→In which condition is a liquid most likely to have the highest vapour pressure?
Class 12 · Chemistry
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