CHM ENG 140 Study Guide - Midterm Guide: Reversible Reaction, Hexane, Chemical Equilibrium

• School: Berkeley
• Department: Chemical & Biomolecular Engineering
• Course: CHM ENG 140
• Professor: All

Document Summary

To avoid buildup of inert argon (or oxygen!: list 2 possible results obtained from a material balance problem solution that would be physically impossible. Negative flow rate, negative concentration, mole/mass fraction > 1, fractions don"t add to. 4: overall, mixer, reactor, splitter: write the general balance equation of some quantity x" in words. Accumulation: (35 points) lorena makes a polymer (p) in benzene (b), at a concentration of 1g polymer to. She then adds 2 g hexane (h) per g benzene, which causes the polymer to precipitate. The mixture goes to a filtration unit, where the precipitate stream contains 90 wt% polymer and 10 wt% hexane. Given that the precipitate is 90 wt% polymer, 10 g precipitate will contain 9 g polymer. Another 9 g polymer is thrown away for a total of 18 g polymer input. Since there is ten times the amount of benzene as polymer, 180 g benzene must be input.