Chemistry · 2015
JEE Main · 10 April 2015, Shift 1 · Q36
A solution at 20°C is composed of 1.5 mol of benzene and 3.5 mol of toluene. If the vapour pressure of pure benzene and pure toluene at this…
A solution at $\displaystyle 20$°C is composed of $\displaystyle 1.5$ mol of benzene and $\displaystyle 3.5$ mol of toluene. If the vapour pressure of pure benzene and pure toluene at this temperature are $\displaystyle 74.7$ torr and $\displaystyle 22.3$ torr, respectively, then the total vapour pressure of the solution and the benzene mole fraction in equilibrium with it will be, respectively :
Official answer
(2)
38.$\displaystyle 0$ torr and $\displaystyle 0.589$
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