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at a atotal pressure of 101.3 kpa ,a solution of methanol in h2o containing 0.158 mole fraction of methanol boils at 84.1 degree celsius . the resulting vapour contains .55 mole fraction of methanol.if the vapour phase of methanol at 80 degree celcius and 100 degree celcius are 178.7 kpa and 349.7 kpa respectively.how does the actual composition of the vapour compared with that calculated from rault’s law?

at a atotal pressure of 101.3 kpa ,a solution of methanol in h2o containing 0.158 mole fraction of methanol boils at 84.1 degree celsius . the resulting vapour contains .55 mole fraction of methanol.if the vapour phase of methanol at 80 degree celcius and 100 degree celcius are 178.7 kpa and 349.7 kpa respectively.how does the actual composition of the vapour compared with that calculated from rault’s law?

Grade:12th pass

1 Answers

Suraj Prasad IIT Patna
askIITians Faculty 286 Points
9 years ago
From Raoult’s law first find the two equations which relates mole fraction with partial pressures.
Do solve them and you will get the moles of the composition.

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