Vapour Pressure of Liquid - Vapour Pressure of Solutions of Solids in Liquids

The vapour pressure of pure benzene at 25°C is 640 mm Hg and that of solution of solute A is 630 mm Hg. The molality of a solution is:

The vapour pressure of a 5% aqueous solution of non-volatile organic substance at 373 k is 745 mm. calculated the molecular mass of the solute

The solubility of a solid in a liquid is significantly affected by temperature changes.

\[\ce{Solute + Solvent -> Solution}\]

The system being in a dynamic equilibrium must follow Le-chatelier’s principle.

Considering the Le-chatelier’s principle which of the following is correct?

The vapour pressure of benzene at 30°C is 121.8 mm. By adding 15 g of non-volatile solute in 250 g of benzene, its vapour pressure is decreased to 120.2 mm. The molecular weight of solute is:

Two beakers of capacity 500 mL were taken. One of these beakers, labelled as “A”, was filled with 400 mL water whereas the beaker labelled “B” was filled with 400 mL of 2 M solution of NaCl. At the same temperature both the beakers were placed in closed containers of same material and same capacity as shown in figure.

At a given temperature, which of the following statement is correct about the vapour pressure of pure water and that of NaCl solution.

At a particular temperature, the vapour pressures of two liquids A and B are respectively 120 and 180 mm of mercury. If 2 moles of A and 3 moles of B are mixed to form an ideal solution, the vapour pressure of the solution at the same temperature will be (in mm of mercury):

The vapour pressures of pure liquids A and B are 400 and 600 mm Hg, respectively at 298 K On mixing the two liquids, the sum of their initial volumes is equal to the volume of the final mixture. The mole fraction of liquids B is 0.5 in the mixture. The vapour pressure of the final solution, the mole fractions of components A and B in vapour phase, respectively are ______.

State Raoult's law for the solution containing volatile components. What is the similarity between Raoult's law and Henry's law?