For a binary ideal liquid solution, the total vapour pressure of the solution is given as:

Question

Professor PC Thomas Classes · Answer

(b) 
$ \begin{array}{r} P=P_A^{\circ} x_A+P_B^{\circ} x_B=P_B^{\circ}+x_A\left(P_A^{\circ}-P_B^{\circ}ight) \ {\left[\because x_B=1-x_Aight]} \end{array} $