SolutionHard
Question
The vapour pressures of pure liquids A, B and C are 75, 22 and 10 torr, respectively. Which of the following is/are possible value(s) of vapour pressure of binary or ternary solutions having equimolar amounts of these liquids? Assume ideal behaviour for all possible solutions.
Options
A.53.5 torr
B.35.67 torr
C.48.5 torr
D.16 torr
Solution
$P_{AB} = \frac{75 + 22}{2} = 48.5\text{ torr}$
$P_{BC} = \frac{10 + 22}{2} = 16\text{ torr} $$${P_{AC} = \frac{10 + 75}{2} = 42.5\text{ torr} }{P_{ABC} = \frac{75 + 10 + 22}{2} = 35.67\text{ torr}}$$
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