The vapor pressures of benzene and toluene are 3 and 4/3 atmospheres respectivel

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The vapor pressures of benzene and toluene are 3 and 4/3 atmospheres respectively. A liquid feed of 0.4 moles of benzene and 0.6 moles of toluene is vapourised. Assuming that the products are in equilibrium, the vapor phase mole fraction of benzene is

Options:

A . 0.4

B . 0.6

C . 0.8

D . 0.2

Answer: Option B

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