Consider the following partially labelled figure for an ideal binary solution of benzene and toluene and answer the following questions:
What is p∘toluene(25∘C)?
A
30mm Hg
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B
100mm Hg
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C
22mm Hg
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D
40mm Hg
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Solution
The correct option is A30mm 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