22.
PA and PB are the vapour pressure of pure liquid components, A and B, respectively of an ideal binary solution. If XA represents the mole fraction of component A, the total pressure of the solution will be
a. PA + XA ( PB – PA )
b. PA + XA ( PA – PB )
c.PB + XA ( PB – PA )
d. PB + XA ( PA – PB )
Ans. d
(5)