Question 8 : Vapour Pressure of Solutions?

Question

Bromobenzene, C6H5Br, and chlorobenzene, C6H5Cl, form essentially ideal solutions in all proportions.

At 100°C, the equilibrium vapour pressure of bromobenzene is 137mmHg and that of chlorobenzene is 285mmHg.

Calculate the equilibrium vapour pressure above a 12.9% (w/w) solution of bromobenzene in chlorobenzene at a temperature of 100°C.


156 mmHg
15609 mmHg
151 mmHg
26591 mmHg
271 mmHg

Answer 1

265.91 mm Hg