Benzene and toluene forms a nearly ideal solution at 313k .the vapour pressure of pure benzene and toluene are 160 mm hg and 60 mm of hg respectively. Calculate the partial pressure of benzene and toluene and the total vapour pressure when solution has:
1.equal weight of benzene and toluene.
2.1 mole of benzene and 4 mole of toluene.
3.contain equal molecule of benzene and toluene.
