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Benzene and naphthalene form ideal solut...

Benzene and naphthalene form ideal solution over the entire range of composition. The vapour pressure of pure benzene and naphthalene at 300 K are 50.71 mm Hg and 32.06 mm Hg respectively. What will be themole fraction of benzene in vapour phase if 80 g of benzene is mixed with 100 g of naphthalene?

A

0.0675

B

0.675

C

0.35

D

0.5

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