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Class 12 · Chemistry
→In an ideal solution, pure vapour pressure of A is greater than that of B. Their liquid-phase mole fractions are equal. Which component will have the higher proportion in the vapour phase?
Class 12 · Chemistry
→Why is it difficult to directly measure vapour pressure of a liquid in an open vessel?
Class 12 · Chemistry
→Why does adding a non-volatile solute increase the boiling point of a solution?
Class 12 · Chemistry
→Why does the boiling point of a liquid decrease when the external pressure is reduced?
Class 12 · Chemistry
→The vapour pressure of a solution is 8% lower than that of the pure solvent. Assuming a non-volatile solute, what is the mole fraction of the solute?
Class 12 · Chemistry
→If solute particles associate with each other, what happens to lowering of vapour pressure?
Class 12 · Chemistry
→Why can lowering of vapour pressure due to an electrolyte be greater than the simple expected value?
Class 12 · Chemistry
→What is the main basis for calling relative lowering of vapour pressure a colligative property?
Class 12 · Chemistry
→A solution has solvent mole fraction 0.60 and pure solvent vapour pressure 120 kPa. Assuming a non-volatile solute, what is the solution vapour pressure?
Class 12 · Chemistry
→If the mole fraction of the solvent is 0.60, what is the mole fraction of the non-volatile solute in a binary solution?
Class 12 · Chemistry
→In a Raoult’s law graph, how does partial pressure vary with mole fraction for an ideal binary solution?
Class 12 · Chemistry
→What is considered the reason for negative deviation in a mixture of acetone and chloroform?
Class 12 · Chemistry
→Why can a mixture of benzene and toluene show nearly ideal behaviour?
Class 12 · Chemistry
→Which type of mixture can form a maximum-boiling azeotrope?
Class 12 · Chemistry
→Which type of mixture can form a minimum-boiling azeotrope?
Class 12 · Chemistry
→In a solution showing negative deviation, which statement about heat of mixing is generally correct?
Class 12 · Chemistry
→In a solution showing positive deviation, which statement about volume change on mixing can generally be true?
Class 12 · Chemistry
→The vapour pressure of a pure solvent is 72 kPa and that of its solution is 54 kPa. What is the mole fraction of the non-volatile solute?
Class 12 · Chemistry
→If the mole fraction of a non-volatile solute is increased, what happens to the vapour pressure of the solution?
Class 12 · Chemistry
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