1.

Vapour pressure of a solution of heptane and octane is given by the equation : P_("sol")(m m Hg) = 32 + 63x where x is the mole fraction of heptane. Vapour pressure of pure heptane will be

Answer»

<P>32mm HG
95 MM Hg
47.5 mm Hg
63 mm Hg

Solution :For PURE HEPTANE, `x=1`
P(heptane)`=32+63+1=95` mm Hg


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