The vapour pressure of the solution, 1 hr after solid C is added, will be : | TestHub

Passage / Comprehension

Two liquids A and B mixture to form an ideal binary solution. On adding solid solute C to the solution, A starts polymerizing into a hexamer. A₆, which is not a soluble solid, follows zero-order kinetics with a rate constant, $K = 1 0^{- 1} m o l / min$ . If initially, $10$ moles of A and $20$ moles of B were taken to form a liquid solution and $5$ moles of C were added, then answer the following questions based on the above information and data given below:

(Vapor pressure of A = $100$ , Vapor pressure of pure B = $90$ ).

The vapour pressure of the solution, 1 hr after solid C is added, will be :

Options:

Answer:

Solution:

$6 A \to A_{6} (8)$

$t = 0$ 10

$t = 1 hr 10 - x$ x/6

4 1

$x = K_{A} t$

$x = 1 0^{- 1} \times 60 = 6$

$P_{so l u t i o n} = P_{A}^{\circ} x_{A} + P_{B}^{\circ} x_{B} = \frac{4}{29} \times 100 + \frac{20}{29} \times 90 = \frac{2200}{29} t orr$

Chemistry - Liquid Solution Question with Solution | TestHub

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