Calculation, percent steam distillation

An organic compound immiscible with water is steam distilled under normal pressure (101.3 kNm" ). At the temperature of distillation the vapour pressure of water is 94.64 kNm. Calculate the weight percent of the liquid that is present in a given amount of the distillate. Molar mass of the organic compound = 0.204 kgmol ... 

The flange leak was taped over, and the exhaust-steam pressure dropped back to 100 mm Hg. The steam required to drive the turbine fell by 18 percent. This incident is technically quite similar to losing the downcomer seal on a distillation tower tray. Again, it illustrates the sort of field observations one needs to combine with basic technical calculations. This is the optimum way to attack, and solve, process problems. 

In a given distillation column, a 1 percent increase in distillate flow D causes distillate composition y to decrease by 0.8 percent, and bottoms composition X to decrease by 1.1 percent. Under the same conditions, a 1 percent increase in steam flow Q causes y to increase by 0.3 percent and x to decrease by 0.2 percent. Calculate the relative-gain matrix. 

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