Question

benzene and toluene form two ideal solution A and B at 313 K. Solution A total pressure Pa)
contains equal mole or ton
tains equal mole of toluene and benzene. Solution B contains equal masses of both (total
pressure PB). The vapour pressure of benzene and toluene are 160 and 60 mm Hg respectively at
313 K. Calculate the value of PA/PB.
(A) 0.694
(B) 0.496
(C) 0.732 (D) 0.964​

Answer 1

benzene and toluene form two ideal solution A and B at 313 K. Solution A total pressure Pa)

contains equal mole or ton

tains equal mole of toluene and benzene. Solution B contains equal masses of both (total

pressure PB). The vapour pressure of benzene and toluene are 160 and 60 mm Hg respectively at

313 K. Calculate the value of PA/PB.

(A) 0.694

(B) 0.496

(C) 0.732 ✔️✔️✔️

(D) 0.964