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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
→Why does water boil at a lower temperature at high altitude?
Class 12 · Chemistry
→What happens when the vapour pressure of a liquid becomes equal to external pressure?
Class 12 · Chemistry
→In a solution, the mole fraction of solvent is 0.9. If the vapour pressure of the pure solvent is 50 kilopascal, what is the vapour pressure of the solvent in the solution?
Class 12 · Chemistry
→Why is lowering of vapour pressure considered a colligative property?
Class 12 · Chemistry
→For a dilute solution containing a non-volatile solute, the relative lowering of vapour pressure is approximately equal to what?
Class 12 · Chemistry
→If the vapour pressure of a pure solvent is 100 kPa and that of its solution is 90 kPa, what is the relative lowering of vapour pressure?
Class 12 · Chemistry
→A liquid has high vapour pressure. Which statement about its intermolecular attraction is correct?
Class 12 · Chemistry
→How is the total vapour pressure of an ideal solution containing two volatile components obtained?
Class 12 · Chemistry
→Why does the vapour pressure of a solution become lower than that of the pure solvent when a non-volatile solute is added?
Class 12 · Chemistry
→The vapour pressure of a pure solvent is 80 kilopascal and the mole fraction of solvent in the solution is 0.75. What is the partial vapour pressure of the solvent?
Class 12 · Chemistry
→If the mole fraction of the solvent decreases, what happens to its partial vapour pressure according to Raoult’s law?
Class 12 · Chemistry
→What is the safest first step while solving vapour-pressure questions based on Raoult’s law?
Class 12 · Chemistry
→Which option gives the correct relation between vapour pressure and boiling point?
Class 12 · Chemistry
→A solution has lower vapour pressure than pure solvent. What may this indicate?
Class 12 · Chemistry
→When the vapour pressure of a liquid is low, what can be said about its tendency to form vapour?
Class 12 · Chemistry
→If XA increases and XB decreases, what happens to PA and PB in an ideal binary solution?
Class 12 · Chemistry
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