A condenser recovers benzene from a contaminated air stream at 65 °C and 36% RS (relative saturation). The air stream leaving the condenser is 8.9 mol% benzene and the condensate is recovered at a rate of 68 kg/m in. The inlet stream and condenser are both at a pressure of 1 atm.
Determine the mole fraction of benzene in the inlet stream.



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