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At 323 K, the vapour pressure in millime...

At 323 K, the vapour pressure in millimeters of mercury of a methanol - ethanol solution is represented by the equation` p=120X_(A)+140, ` where `X_(A)` is the mole fraction of methanol. Then the value of `underset(x_(A)rarr1)"lim"(p_(A))/(p_(B))` is :

A

250mm

B

140mm

C

260mm

D

20mm

Text Solution

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The correct Answer is:
C
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