Chemistry - Liquid Solution Question with Solution | TestHub

At$363 \mathrm{K}$, the vapour pressure of$\mathrm{A}$is$21 \mathrm{kPa}$and that of$\mathrm{B}$is$18\mathrm{kPa}$. One mole of$\mathrm{A}$and$2$moles of$\mathrm{B}$are mixed. Assuming that this solution is ideal, the vapour pressure of the mixture is___________$\mathrm{kPa}$.$($Round of to the Nearest Integer$)$.