Question: .. please do it correctly.. A mixture of 5 mol% butane and 95 mol% air is absorbed in a tower containing 10 ideal plates. The

.. please do it correctly.. A mixture of 5 mol% butane and 95 mol% air is absorbed in a tower containing 10 ideal plates. The absorbing liquid is a heavy, non-volatile oil. You may assume the incoming oil contains no butane. The absorption takes place at 3 atm and 15oC. The butane is to be recovered to the extent of 97%. The vapour pressure of butane at 15oC is 1.90 atm. Assume that Raoults and Daltons laws apply. Assume that butane behaves as a dilute solute.

a) Calculate the moles of fresh absorbing oil per mole of butane recovered

b) Calculate the moles of fresh absorbing oil per mole of butane recovered if the column pressure is lowered to 1 atm?

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