Dry air was successively passed through a solution of $5 \mathrm{g}$ solute in $80 \mathrm{g}$ water and then through pure water. The loss in weight of solution was $2.5 \mathrm{g}$ and that of pure water was $0.04 \mathrm{g}.$ What is mol. wt of solute?

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

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

Three different ideal solutions (I, II, III) each containing total $10$ moles of $\mathrm{A} \& \mathrm{B}$ in different composition are taken as shown in figure and pressure over the solutions is gradually reduced.

Initially external pressure is same for all three solutions. At a particular external pressure $\left({\mathrm{P}}_1\right)$, ll solution is found to have

$\underset{(\mathrm{liq} \mathrm{composition})}{{\mathrm{X}}_{\mathrm{A}}=0.4 } \& \underset{(\mathrm{Vap}. \mathrm{composition})}{{\mathrm{Y}}_{\mathrm{A}}=0.8}$

Then select correct statement: