Glycerol is pumped from storage tanks to rail cars through a single 50mm diameter main 10m long, which must be used for all grades of glycerol. After the line has been used for commercial material, how much pure glycerol must be pumped before the issuing liquid contains not more than1% of the commercial material? The flow in the pipeline is streamline and the two grades of glycerol have identical densities and viscosities.

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
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Glycerol is pumped from storage tanks to rail cars through a single 50mm diameter main 10m long, which must be used for all grades of glycerol. After the line has been used for commercial material, how much pure glycerol must be pumped before the issuing liquid contains not more than1% of the commercial material? The flow in the pipeline is streamline and the two grades of glycerol have identical densities and viscosities.

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