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Class 12 · Chemistry
→If the mole fraction of the more volatile component is increased in an ideal solution, in which direction will total vapour pressure change?
Class 12 · Chemistry
→In an ideal solution, what is the relation between total vapour pressure and liquid composition?
Class 12 · Chemistry
→If observed molar mass of a solute is greater than its actual value, which behaviour is likely?
Class 12 · Chemistry
→If observed molar mass of a solute is less than its actual value, which behaviour is likely?
Class 12 · Chemistry
→Why can lowering of vapour pressure be used to determine molar mass of a solute?
Class 12 · Chemistry
→In an ideal solution, the mole fraction of component A in the vapour phase is 0.4 and the total pressure is 200 kPa. What is the partial pressure of A?
Class 12 · Chemistry
→In an ideal binary solution, the pure vapour pressures of components A and B are 50 kPa and 150 kPa, respectively. If the mole fraction of A is 0.7, what is the total vapour pressure?
Class 12 · Chemistry
→Why can vapour pressure of an acetone and chloroform mixture be lower than the ideal value?
Class 12 · Chemistry
→Which pair may be considered a good example of a nearly ideal solution?
Class 12 · Chemistry
→For formation of an ideal solution, what should be the relation between attractions among like and unlike molecules?
Class 12 · Chemistry
→A liquid has very low vapour pressure. Which estimate about its normal boiling point is more correct?
Class 12 · Chemistry
→A liquid has very high vapour pressure. Which statement about its intermolecular forces and volatility is correct?
Class 12 · Chemistry
→What is the correct reason for the decrease in the boiling point of water at a high-altitude place?
Class 12 · Chemistry
→When the vapour pressure of a liquid becomes equal to the external pressure, which condition is reached?
Class 12 · Chemistry
→A solution has vapour pressure 18% lower than that of the pure solvent. What is the mole fraction of the solvent?
Class 12 · Chemistry
→Why does relative lowering of vapour pressure have no unit?
Class 12 · Chemistry
→If solute particles associate, why is lowering of vapour pressure less than expected?
Class 12 · Chemistry
→Why can lowering of vapour pressure become greater when solute particles dissociate in a solution?
Class 12 · Chemistry
→The vapour pressure of a real solution is found below the ideal line. What type of molecular attraction does this indicate?
Class 12 · Chemistry
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