Question Solved1 Answer 1. One hundred moles per hour of 40% by mole solution of ethylene dichloride in toluene is fed into the middle of a distillation column. There is no net accumulation in the column; 100 mole/hr. of the total material leaves in two streams. The distillate stream contains 95% by mole ethylene dichloride and the bottoms stream contains 10% by mole ethylene dichloride. What is the rate of flow of the distillate stream? 2. A salt solution originally 4% w NaCl in water is evaporated until the concentration is 5% w NaCl. What percentage of water in the original solution enters the drier? Please show the complete process flow diagram and solution to these problems.

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1. One hundred moles per hour of 40% by mole solution of ethylene dichloride in toluene is fed into the middle of a distillation column. There is no net accumulation in the column; 100 mole/hr. of the total material leaves in two streams. The distillate stream contains 95% by mole ethylene dichloride and the bottoms stream contains 10% by mole ethylene dichloride. What is the rate of flow of the distillate stream?

2. A salt solution originally 4% w NaCl in water is evaporated until the concentration is 5% w NaCl. What percentage of water in the original solution enters the drier?

Please show the complete process flow diagram and solution to these problems.

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The process flow diagram is shown above. Apply overall mole balance Mole in=Mole out Mole in=mole of Feed=100 mol/h Mole out=Mole of distillate + Mole of bottom Mole out=A+ B Where A is mole of distillate  Mole of B is mole of bottom 100=A+B eq.1 Apply mole balance of ethylene dichloride Mole of ethylene dichloride in=Mole of ethylene dichloride out Mole of ethylene dichloride in=0.4*100 mol/h=40 mol/h M ... See the full answer