Two materials A and B are pumped separately but are mixed together in a process: $47\%$ of the mass is A and the rest

is B$.$ The substance A consists of $80\%$ water and the rest is substance B$.$

The mixture of A and B is also heated in the process to partially distill away the water ie$.$ after processing

of the material then the product contains only $30\%$ water and the rest B$.$ The process therefore leaves a product stream and then

clean water.

a$)$ Draw a flow diagram and mark the main process parameters on the curve

b$)$ Calculate the degrees of freedom for the curve.

c$)$ A mass of $100$ kg of substance A is used, how much of the product is formed