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  • Two liquids A and Bat 300k forms an ideal solution. The vapour pressure of pure A and B are 500mm and 800mm. If Anole of A and x  mole of B are mixed vapour pressure of solution become 70

Two liquids A and Bat 300k forms an ideal solution. The vapour pressure of pure A and B are 500mm and 800mm. If Anole of A and x  mole of B are mixed vapour pressure of solution become 700mm. What is Value of x.

Option: 1

4


Option: 2

8


Option: 3

3


Option: 4

9


Answers (1)

best_answer


\mathrm{\frac{1}{1+x} .500+\frac{x}{1+x} \cdot 800=700}

\mathrm{\frac{500+800 x}{1+x}=750 }

\mathrm{500+800 x=750+750 x }

\mathrm{800 x-750 x=750-500}

\mathrm{50 x=200}

\mathrm{x=4}

Posted by

seema garhwal

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