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4.15. WP Two streams flow into a 500-gallon tank. The first stream is 10.0 wt% ethanol and 90.0% hexane (the mixture density, p1, is o.68 g/cm3) and the second is 90.0 wt% ethanol, 10.0% hexane (p2 = 0.78 g/cm³). After the tank has been filled, which takes 22 min, an analysis of its contents determines that the mixture is 60.0 wt% ethanol, 40.0% hexane. You wish to estimate the density of the final mixture and the mass and volumetric flow rates of the two feed streams. a. Draw and label a flowchart of the mixing process and do the degree-of-freedom analysis. b. Perform the calculations and state what you assumed.

4.15. WP Two streams flow into a 500-gallon tank. The first stream is 10.0 wt% ethanol and 90.0% hexane (the mixture density, p1, is o.68 g/cm3) and the second is 90.0 wt% ethanol, 10.0% hexane (p2 = 0.78 g/cm³). After the tank has been filled, which takes 22 min, an analysis of its contents determines that the mixture is 60.0 wt% ethanol, 40.0% hexane. You wish to estimate the density of the final mixture and the mass and volumetric flow rates of the two feed streams. a. Draw and label a flowchart of the mixing process and do the degree-of-freedom analysis. b. Perform the calculations and state what you assumed.

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
Problem 1.1P
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4.15. WP Two streams flow into a 500-gallon tank. The first stream is 10.0 wt% ethanol and 90.0% hexane (the mixture density, p1, is o.68 g/cm3) and the second is 90.0 wt% ethanol, 10.0% hexane (p2 = 0.78 g/cm³). After the tank has been filled, which takes 22 min, an analysis of its contents determines that the mixture is 60.0 wt% ethanol, 40.0% hexane. You wish to estimate the density of the final mixture and the mass and volumetric flow rates of the two feed streams. a. Draw and label a flowchart of the mixing process and do the degree-of-freedom analysis. b. Perform the calculations and state what you assumed.
Transcribed Image Text:4.15. WP Two streams flow into a 500-gallon tank. The first stream is 10.0 wt% ethanol and 90.0% hexane (the mixture density, p1, is o.68 g/cm3) and the second is 90.0 wt% ethanol, 10.0% hexane (p2 = 0.78 g/cm³). After the tank has been filled, which takes 22 min, an analysis of its contents determines that the mixture is 60.0 wt% ethanol, 40.0% hexane. You wish to estimate the density of the final mixture and the mass and volumetric flow rates of the two feed streams. a. Draw and label a flowchart of the mixing process and do the degree-of-freedom analysis. b. Perform the calculations and state what you assumed.
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