The following graph represents variation of boiling point with composition of liquid and vapours of binary liquid mixture. The graph is plotted at constant pressure -
Which of the following statement(s) is correct.

Question

The following graph represents variation of boiling point with composition of liquid and vapours of binary liquid mixture. The graph is plotted at constant pressure -

Which of the following statement(s) is correct.

TestHub · Accepted Answer

In a boiling point–composition (T–x–y) diagram, the upper curve represents liquid composition ( $X$ ) and the lower curve represents vapor composition ( $Y$ ).

At the marked horizontal line, the graph gives:

$X_{b e n ze n e} = 0.5, Y_{t o l u e n e} = 0.2$

Hence, Option (A) is correct.

Since

$X_{t o l u e n e} = 1 - 0.5 = 0.5, Y_{b e n ze n e} = 1 - 0.2 = 0.8,$

options (B) and (D) are incorrect.

From the second marked horizontal line,

$X_{b e n ze n e} = 0.3, Y_{t o l u e n e} = 0.4,$

so Option (C) is also correct.

Answer: A, C

Chemistry - Liquid Solution Question with Solution | TestHub

Options:(select one or more)

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