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6. In fermentation, yeast converts glucose to ethanol releasing CO2 as a gas: C,H12O6 → 2 C,H;OH + 2 CO2 A tank is charged with 2000 kg of water to which glucose and a small quantity of yeast are added before conditions are set to allow fermentation to take place. During the process CO2 gas is continually extracted. Once the process has reached completion, the liquid solution in the vat is analvsed and found to contain 80% water, 15% ethanol and

6. In fermentation, yeast converts glucose to ethanol releasing CO2 as a gas: C,H12O6 → 2 C,H;OH + 2 CO2 A tank is charged with 2000 kg of water to which glucose and a small quantity of yeast are added before conditions are set to allow fermentation to take place. During the process CO2 gas is continually extracted. Once the process has reached completion, the liquid solution in the vat is analvsed and found to contain 80% water, 15% ethanol and

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
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6. In fermentation, yeast converts glucose to ethanol releasing CO2 as a gas: C,H1206 → 2 C,H5OH + 2 CO2 A tank is charged with 2000 kg of water to which glucose and a small quantity of yeast are added before conditions are set to allow fermentation to take place. During the process CO2 gas is continually extracted. Once the process has reached completion, the liquid solution in the vat is analysed and found to contain 80% water, 15% ethanol and 5% unreacted glucose on a mass basis. Complete a material balance table for this process. Hence determine: a) the mass of CO2 produced b) the overall conversion of glucose с) the mass% composition of glucose present in the tank before fermentation starts. (Assume yeast has no effect on the mass of the material held in the tank and that the extracted gas contains only CO2).
Transcribed Image Text:6. In fermentation, yeast converts glucose to ethanol releasing CO2 as a gas: C,H1206 → 2 C,H5OH + 2 CO2 A tank is charged with 2000 kg of water to which glucose and a small quantity of yeast are added before conditions are set to allow fermentation to take place. During the process CO2 gas is continually extracted. Once the process has reached completion, the liquid solution in the vat is analysed and found to contain 80% water, 15% ethanol and 5% unreacted glucose on a mass basis. Complete a material balance table for this process. Hence determine: a) the mass of CO2 produced b) the overall conversion of glucose с) the mass% composition of glucose present in the tank before fermentation starts. (Assume yeast has no effect on the mass of the material held in the tank and that the extracted gas contains only CO2).
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