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Solutions question

2018 · Shift 1 · Q10

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PYQ Library
JEE Advanced
Chemistry
Solutions
2018 · Shift 1 · Q10

Solutions question

2018 · Shift 1 · Q10

JEE AdvancedChemistrySolutionsNumerical+3 / −1

Liquids A and B form ideal solution over the entire range of composition. At temperature

T,

equimolar binary solution of liquids

A

and

B

has vapor pressure

45Torr.

At the same temperature, a new solution of

A

and

B

having mole fractions

{X_A}

and

{X_B}

, respectively, has vapour pressure of

22.5Torr.

The value of

{x_A}/{x_B}

in the new solution is

\underline{\hspace{2cm}}

. (given that the vapor pressure of pure liquid

A

is

20Torr

at temperature

T

)

Numerical answer

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