1000 kg/h of Seawater containing 3.5 wt% salt and the balance water passes through a series of 3 evaporators. In each evaporator, 90.% of the entering water is vaporized. The salt and remaining liquid water is fed to the next evaporator in series. The vapor streams from each evaporator are condensed and combined to obtain a product stream of pure water. The liquid outlet stream from the final evaporator in series is called thebrine. Required:
a. Draw and label the flow chart for this process. Use variable notation to label the amount and composition of each flow stream.
b. Carry out a DOF analysis on each subsystem based on your flowchart.
c. What is the mass flowrate of the pure water product stream in kg/h?
d. What is the mass flowrate of the brine product stream in kg/h?
e. What is the composition of the brine product stream in wt%?

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  balanced chemical equations follow the law of conservation of mass and charges. the masses and charges on either sides of the equation should be balanced.in conservation of mass, the number of atoms of each element on left side should be equal to the number of atoms of each element on the right side of the equation.1)k₂so₄ + 2ca(no₃)₂ --> 2kno₃ + 2caso₄number of ions        left side             right side  k⁺         2                         2so₄²⁻   1                         2ca²⁺     2                         2no₃⁻     4                         2in this equation the masses of so₄²⁻ and no₃ are not balanced. therefore this equation violates the law of conservation of mass2)ti + 2 cl₂ > ticl₄        left side       right side  ti           1               1cl           4               4this equation follows the law of conservation of mass3)2c₂h₂ + 5o₂ > 4co₂   + 2h₂o              left side     right side  c               4               4h               4               4o             10             10this equation follows the law of conservation of mass4)baso₄ + 2naoh --> ba(oh)₂   + na₂so₄          left side       right side  ba       1                   1so₄²⁻     1                   1na         2                   2  oh⁻       2                   2this equation follows the law of conservation of massanswer is 1st equation

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