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Question

Consider the following partially labelled figure for an ideal binary solution of benzene and toluene and answer the following questions:
What is ptoluene(25C)?

A
30 mm Hg
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B
100 mm Hg
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C
22 mm Hg
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D
40 mm Hg
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Solution

The correct option is A 30 mm Hg
To solve this question we have to assume that curve has been plotted at 250C
Now the straight line 2 representing the vapour pressure of toluene has the value of 30 mmHg at xT=1
So P0toluene=30mmHg

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