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a.What is the approximation of Fick's equation (Hint: the first three terms)! b. A quiescent body of water has a depth of 600 mm. The DO level at the bottom after 16 days is 3.5 mg/l when the surface is exposed to the atmosphere at a temperature of 25°C. Determine the DO of the water body. The saturated DO at 25°C is 8.5 mg/l and the diffusion coefficient (kd) at 25°C is 2.5 x 10° mm?/s. C.The rate constant for a coagulation reaction based on first-order kinetics is k equal to 72 per day from laboratory tests. Calculate the detention time required in an ideal completely mixed tank and an ideal plug flow tank for 80% reduction, C, = 150 mg/l, and C, = 20 mg/l.

a.What is the approximation of Fick's equation (Hint: the first three terms)! b. A quiescent body of water has a depth of 600 mm. The DO level at the bottom after 16 days is 3.5 mg/l when the surface is exposed to the atmosphere at a temperature of 25°C. Determine the DO of the water body. The saturated DO at 25°C is 8.5 mg/l and the diffusion coefficient (kd) at 25°C is 2.5 x 10° mm?/s. C.The rate constant for a coagulation reaction based on first-order kinetics is k equal to 72 per day from laboratory tests. Calculate the detention time required in an ideal completely mixed tank and an ideal plug flow tank for 80% reduction, C, = 150 mg/l, and C, = 20 mg/l.

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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Solve a,b and c

a.What is the approximation of Fick's equation (Hint: the first three terms)! b. A quiescent body of water has a depth of 600 mm. The DO level at the bottom after 16 days is 3.5 mg/l when the surface is exposed to the atmosphere at a temperature of 25°C. Determine the DO of the water body. The saturated DO at 25°C is 8.5 mg/l and the diffusion coefficient (kd) at 25°C is 2.5 x 10° mm?/s. C.The rate constant for a coagulation reaction based on first-order kinetics is k equal to 72 per day from laboratory tests. Calculate the detention time required in an ideal completely mixed tank and an ideal plug flow tank for 80% reduction, C, = 150 mg/l, and C, = 20 mg/l.
Transcribed Image Text:a.What is the approximation of Fick's equation (Hint: the first three terms)! b. A quiescent body of water has a depth of 600 mm. The DO level at the bottom after 16 days is 3.5 mg/l when the surface is exposed to the atmosphere at a temperature of 25°C. Determine the DO of the water body. The saturated DO at 25°C is 8.5 mg/l and the diffusion coefficient (kd) at 25°C is 2.5 x 10° mm?/s. C.The rate constant for a coagulation reaction based on first-order kinetics is k equal to 72 per day from laboratory tests. Calculate the detention time required in an ideal completely mixed tank and an ideal plug flow tank for 80% reduction, C, = 150 mg/l, and C, = 20 mg/l.
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