Calculate the Henry's law constant at $25^{\circ} \mathrm{C}$ if solubility of gas in liquid is $2.1 \times 10^{-2} \mathrm{~mol} \mathrm{dm}^{-3}$ at 0.18 bar.

Which from following is an example of solution of solid as solute and liquid as solvent?

If osmotic pressure of 0.2 M aqueous glucose solution is 5 atm at 300 K . Calculate the concentration of glucose solution having osmotic pressure 2.5 atm at same temperature.