Two liquids A and B form an ideal solution. At a certain temperature, the vapor pressure of pure A is 400 mm Hg and that of pure B is 700 mm Hg. If the mole fraction of A in the liquid phase is 0.4, what is the mole fraction of A in the vapor phase?

When an ideal binary solution is in equilibrium with its vapour, molar ratio of the two components in the solution and in the vapour phase is :

Two liquids X and Y form an ideal solution. The mixture has a vapour pressure of 400 mm at 300 K when mixed in the molar ratio of 1:1 and a vapour pressure of 350 mm when mixed in the molar ratio of 1:2 at the same temperature. The vapour pressures of the two pure liquids X and Y respectively are

For an ideal binary liquid solution with $P_A^ \circ > P_B^ \circ$ which relation between ${X_A}$ (mole fraction of A in liquid phase) and ${Y_A}$ (mole fraction of A in vapour phase) is correct, ${X_B}$ and ${Y_B}$ are mole fraction of B in liquid and vapour phase respectively :

One component of a solution follows Raoult’s law over the entire range $0 \le {x_1} \le 1$ . The second component must follow Raoult’s law in the range when ${x_2}$ is

At 25°C, an equimolar mixture of benzene (vapor pressure = 12.8 kPa) and toluene (vapor pressure = 3.85 kPa) forms an ideal solution. If the total pressure above the solution is 8.325 kPa, which component has a higher partial pressure in the vapor phase?

When the vapour pressure of solutions of two liquids are less than those expected from ideal solutions, they are said to show :

The plots of $\frac{1}{{{X_A}}}\;vs.\;\frac{1}{{{Y_A}}}$ (where ${X_A}\;{\rm{and}}\;{Y_A}$ are the mole fraction of liquid A in liquid and vapour phase respectively) is linear with slope and intercepts respectively:

Which of the following deviations from Raoult's law is associated with the formation of a maximum boiling azeotrope?

At 25°C, the vapor pressures of pure benzene and toluene are 12.8 kPa and 3.85 kPa, respectively. If an ideal solution is prepared with 2 moles of benzene and 1 mole of toluene, what is the total vapor pressure above the solution?

Which of the following mixture does not show positive deviation from the Raoult’s law?