A distillation column is used to separate more volatile components from less volatile ones. In the following flow chart a. Estimate the degree of freedom for the process b. Choose one of these assumptions and estimate the rest of the unknowns. These is only one correct assumption i. Assume that m1=1000kg/h and that x2A=0.7. ii. Assume that m1=1000kg/h and that x24=0.7,m3=200kg/h iii. Assume that m1=1000kg/h and that x2A=0.7,m3=200kg/h,x4,B=0.1