EASY
JEE Main/Advance
IMPORTANT
Earn 100

The vapor pressure of chlorobenzene and water at different temperatures are

t°C 90 100 110
P°(ϕCl)/mm Hg 204 289 402
P°H2O/mm Hg 526 760 1075

At what temperature will ϕ Cl steam-distillation under a total pressure of 800 mm Hg?

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Important Questions on Solutions

HARD
JEE Main/Advance
IMPORTANT

The vapour pressure of fluorobenzene at t°C is given by the equation

logp(mm Hg)=7.0-1250t+220

Calculate the boiling point of the liquid in C if the external (applied) pressure is 5.26% more than required for normal boiling point. (log2=0.3)

HARD
JEE Main/Advance
IMPORTANT
Two liquids A and B are miscible over the whole range of composition and may be treated as ideal (obeying Raoult's law.) At 350 K the vapour pressure of pure A is 24.0 kPa and of pure B is 12.0 kPa. A mixture of 60% A and 40% B is distilled at this temperature. A small amount of the distillate is collected and and redistilled at 350 K ; what is the mole percent of B in the second distillate ?
HARD
JEE Main/Advance
IMPORTANT
Determine i(vant-Hoff factor) for a tribasic acid H3A. Assuming first dissociation to be 100%, second dissociation 50%, third dissociation 20%, (Round off your answer to nearest integer).
HARD
JEE Main/Advance
IMPORTANT
Dry air was successively passed through a solution of 5 g solute in 80 g water and then through pure water. The loss in weight of solution was 2.5 g and that of pure water was 0.04 g. What is mol. wt of solute?
MEDIUM
JEE Main/Advance
IMPORTANT

The diagram given below represents boiling point composition diagram of solution of components A and B, which is/are incorrect among the following?

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MEDIUM
JEE Main/Advance
IMPORTANT
For a dilute solution having molality m of a given solute in a solvent of molecular weight M, boiling point Tb and heat of vaporisation per mole H;  Tb mm0 is equal to:
EASY
JEE Main/Advance
IMPORTANT
Assuming each salt to be 90% dissociated which of the following will have highest osmotic pressure?
EASY
JEE Main/Advance
IMPORTANT

The phase diagrams for the pure solvent (solid lines) and the solution (non-volatile solute, dashed line) are recorded below: The quantity indicated by L in the figure is:

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