Give a clear, step by step solution. A scanned solution is much more appreciated. A continuous gravity decanter is to separate nitrobenzene of density 75 lbm/ft3 from aqueous was liquid density 64...

Give a clear, step by step solution. A scanned solution is much more appreciated.

A continuous gravity decanter is to separate nitrobenzene of density 75 lbm/ft3 from aqueous was liquid density 64 Ibm/ft3. If the total depth in separation is 3 ft and interface is to be 1.5 ft from the vessel floor, then what should be the height of the heavy liquid overflow leg and how much will an error of 2 inches in this height (ha2) will affect the interface position? Calculate the percent difference of the original interface height ha1 compared to the adjusted ha1 due to the 2-inch error in the height of the heavy liquid overflow, ha2?