Saturated solution of benzene in water is in equilibrium with a mixture of air and vapours of benzene and water at room temperature and pressure. Mole fraction of benzene in liquid is xB and the vapour pressures of benzene and water at these conditions are pv B and pv w respectively. The partial pressure of benzene in air-vapour mixture is_________________?

Question

Accepted Answer

PvB. According to Dalton's law of partial pressures, the partial pressure of a component in a gas mixture is equal to its vapor pressure when the system is at equilibrium.