Liquids A and B form an | LIQUID SOLUTION |JEE-MAIN 2019

JEE Main 2019

10-01-2019 S1

Question

Liquids A and B form an ideal solution in the entire composition range. At 350 K , the vapor pressures of pure A and pure B are $7 \times 10^3 \mathrm{~Pa}$ and $12 \times 10^3 \mathrm{~Pa}$, respectively. The composition of the vapor in equilibrium with a solution containing 40 mole percent of A at this temperature is

Select the correct option:

$\mathrm{x}_{\mathrm{A}}=0.76 ; \mathrm{x}_{\mathrm{B}}=0.24$

$\mathrm{x}_{\mathrm{A}}=0.37 ; \mathrm{x}_{\mathrm{B}}=0.63$

$\mathrm{x}_{\mathrm{A}}=0.28 ; \mathrm{x}_{\mathrm{B}}=0.72$

$\mathrm{x}_{\mathrm{A}}=0.4 ; \mathrm{x}_{\mathrm{B}}=0.6$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution