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The following is a graph plotted between...

The following is a graph plotted between the vapour pressure of two volatile liquids against their respective mole fractions. Which of the following statements is/are correct?

A

When `X_(A) = 1` and `X_(B) = 0`, then `P = P_(A)^(@)`

B

When `X_(B) = 1` and `X_(A) = 0`, then `P gt P_(A)^(@)`

C

When `X_(A) = 1` and `X_(B) = 0`, then `P lt P_(B)^(@)`

D

When `X_(B) = 1` and `X_(A) = 0`, then `P = P_(B)^(@)`

Text Solution

Verified by Experts

The correct Answer is:
A, B, C, D
`P = P_(A)^(@)X_(A) + P_(B)^(@)X_(B)`
when `X_(A) = 1, X_(B) = 0 rArr P = P_(A)^(@)`
Also `P_(A)^(@) lt P_(B)^(@)`
when `X_(B) = 1, X_(A) = 0 rArr P = P_(B)^(@)`
and from graph, `P_(B)^(@) gt P_(A)^(@)`
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