Mass balances on systems, Mechanical Engineering

To make strawberry jam, a two-stage process is used as shown in the figure.  First, crushed strawberries and sugar are mixed in a 45:55 ratio by mass. Then the mixture is heated to evaporate water until the residue contains one-third water by mass. Strawberries contain about 15% solids (S) and 85% water (W) by mass.

645_Mass Balances on Systems.png

Assume steady-state operation and provide the missing information in the tablebelow:




Composition (Weight Percent)



Mass Flow Rate (lbm/h)

Strawberry Solids






15 %








100 %


Evaporator Feed









100 %



Strawberry Jam



33 %


Posted Date: 3/2/2013 4:26:22 AM | Location : United States

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