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23 Nov 2019
Liquids A and B form an ideal solution. A certain solutioncontains 25 mol% of A, whereas the vapor in equilibrium with thesolution at 25 C contains 50 mol% of A. The heat of vaporization ofA is 21 KJ / mol; that of B is 30 KJ / mol.
(a) Calculate the ratio of the vapor pressure of pure A to that ofpure B at 25 C.
(b) Calculate the value for this same ratio at 100 C.
Liquids A and B form an ideal solution. A certain solutioncontains 25 mol% of A, whereas the vapor in equilibrium with thesolution at 25 C contains 50 mol% of A. The heat of vaporization ofA is 21 KJ / mol; that of B is 30 KJ / mol.
(a) Calculate the ratio of the vapor pressure of pure A to that ofpure B at 25 C.
(b) Calculate the value for this same ratio at 100 C.
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