Liquids A and B form an ideal solution. A certain solution of A and B contains 25 mole percent of A,

Question

Liquids A and B form an ideal solution. A certain solution of A and B contains 25 mole percent of A, whereas the vapours in the equilibrium with the solution at 298 K contains 50 mole percent of A. The ratio of vapour pressures of pure A to that of pure B at 298 K, is

Accepted Answer

$\frac{Y_{A}}{Y_{B}} = \frac{X_{A}}{X_{B}}.\frac{P_{A}^{o}}{P_{B}^{o}} \Rightarrow \frac{0.5}{0.5} = \frac{0.25}{0.75} 	imes \frac{P_{A}^{o}}{P_{B}^{o}} \Rightarrow \frac{P_{A}^{o}}{P_{B}^{o}} = \frac{3}{1}$

Question

Options

Solution

More Solution Questions