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A textile finishing process involves drying a fabric that has been treated with a volatile solvent....

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Chemistry

A textile finishing process involves drying a fabric that hasbeen treated with a volatile solvent. The drying process involvesevaporation of solvent and removal of solvent vapor by air. The wetfabric entering the dryer contains 50% solvent. Solvent-free airenters the dryer at a rate of 8 kilograms per kilogram of dry(solvent-free) fabric. The drying process is 96% efficient (i.e.,96% of the entering solvent is removed from fabric).

(a) Calculate the percentage of solvent in the dried fabric byweight.

(b) What is the concentration of solvent in the dryer exhaust(in g/m3) if the exhaust is at 80 degrees C and 1 atm?The solvent has a molecular weight of 86.

Answer & Explanation Solved by verified expert
3.6 Ratings (588 Votes)
degrees C and 1 atm The solvent has a molecular weight of 86 Basis 100 kg of wet fabric Solvent in the fabric 50 kgs Amount of dry fabric 10050 50 kgs The drying process is 96 efficient ie 96    See Answer
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