Question: A solution M1 containing 18% KCl, 3% K2SO4 and 79% water is fed to the process shown below at the rate of 150 kg/hr. The

A solution M1 containing 18% KCl, 3% K2SO4 and 79% water is fed to the process shown below at the rate of 150 kg/hr. The compositions of the streams are as follows in mass percent.

The process conditions are:

Permutation 1:

Evaporator product (M5): KCl 17%, K2SO4 22%, H2O 61%.

Recycle (M7) KCl 20%.

M3= 100% KCl

M4= 100% H20

M6=100% K2SO4

Permutation 2:

Evaporator product (M5): KCl 22%, K2SO4 15%, H2O 63%.

Recycle (M7) KCl 15%.

M3= 100% KCl

M4= 100% H20

M6=100% K2SO4

Permutation 3:

Evaporator product (M5): KCl 15%, K2SO4 25%, H2O 60%.

Recycle (M7) KCl 15%.

M3= 95% KCl, H2O 5%.

M4= 100% H20

M6=100% K2SO4

Complete a degree of freedom and create an excel spreadsheet to determine if the problem is solvable

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