vapour pressure of a solution of heptane & octane is given by the equation: P(sol.)(mm Hg) = 35 + 65x, where x is the mole fraction of heptane. Calculate the vapour pressure of pure octane.7

vapour pressure of a solution of heptane & octane is given by the equa

1.	vapour pressure of a solution of heptane & octane is given by the equation: P(sol.)(mm Hg) = 35 + 65x, where x is the mole fraction of heptane. Calculate the vapour pressure of pure octane.7
Answer» 35 , if only OCTANE is present then mole fraction of heptane WOULD be ZERO and the vapour pressure would correspond to PURE octane