Question

Benzene and toluene form an ideal solution. The vapour pressure of benzene and toluene are
respectively 75 mm and 22 mm at 20°C. If the mole fraction of benzene and toluene in vapour
phase are 0.63 and 0.37 respectively, then :
(i) The vapour pressure of mixture is -
(A) 39.68 mm
(B) 79.32 mm
(C) 58.56 mm
(D) 29.24 mm
Mole fraction of benzene & toluene in liquid phase is -
(A) 0.2, 0.8
(B) 0.63, 0.37
(C) 0.54, 0.46
(D) 0.33 067
1 mole benzene (po - 12 mn
18.​

Answer 1

Answer:

i) The correct ans is 55.39 mm of Hg.

The given options are wrong.

ii) (B) 0.63, 0.37