Question

if mole fraction of a non volatile solute in benzene is 0.2, then the vapour pressure of this solution will be (given that vapour pressure of pure benzene )

Answer 1

Explanation:

The vapour pressure of pure benzene at 50oC is 268 mm of Hg. How many moles of non-volatile sohite per mole of benzene are required to prepare a solution of benzene having a vapour pressure 167 mm of Hg at ... So, Mole fraction of solvent =268167​=0.623. Mole fraction of solute =1−0.623=0.377