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A stirred tank with a volume of 20 liters contains a sugar solution at a concentration of 150 g/L. If sugar-free water is continuously fed into this tank at the rate of 15L/h. Determine the concentration of sugar at 120 min. Assume that the volume is maintained constant by continuously overflowing the excess liquid.

A stirred tank with a volume of 20 liters contains a sugar solution at a concentration of 150 g/L. If sugar-free water is continuously fed into this tank at the rate of 15L/h. Determine the concentration of sugar at 120 min. Assume that the volume is maintained constant by continuously overflowing the excess liquid.

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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Problem III. - A stirred tank with a volume of 20 liters contains a sugar solution at a concentration of 150 g/L. If sugar-free water is continuously fed into this tank at the rate of 15L/h. Determine the concentration of sugar at 120 min. Assume that the volume is maintained constant by continuously overflowing the excess liquid. Problem IV. . Calculate the amount of water that must be supplied to a heat exchanger that cools 100 kg/h of ubi paste from 80°C to 20°C. The ubi paste contains 60% solids. The increase in water temperature should not exceed 15°C while passing through the heat exchanger. There is no mixing of water and ubi paste in the heat exchanger. The specific heat of water is 4,180 J/kg K.
Transcribed Image Text:Problem III. - A stirred tank with a volume of 20 liters contains a sugar solution at a concentration of 150 g/L. If sugar-free water is continuously fed into this tank at the rate of 15L/h. Determine the concentration of sugar at 120 min. Assume that the volume is maintained constant by continuously overflowing the excess liquid. Problem IV. . Calculate the amount of water that must be supplied to a heat exchanger that cools 100 kg/h of ubi paste from 80°C to 20°C. The ubi paste contains 60% solids. The increase in water temperature should not exceed 15°C while passing through the heat exchanger. There is no mixing of water and ubi paste in the heat exchanger. The specific heat of water is 4,180 J/kg K.
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