Question 12 of 171

Mol fraction of the component A in vapour phase is X1 and mol fraction of component A in liquid mixture is X2 then 

(PA0 = vapour pressure of pure A; PB0= vapour pressure of pure B),

then total vapour pressure of the liquid mixture is-

(a) PA0X2X1

(b) PA0X1X2

(c) PB0X1X2

(d) PB0X2X1