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A stream of air at 100 kPa pressure and 300 K is flowing on the top surface of a thin flat sheet of solid naphthalene of length 0.2 m with a velocity of 20 m/sec. The other data are: Mass diffusivity of naphthalene vapor in air = 6×10-6 m²/s Kinematic viscosity of air = 1.5x10-5 m²/s Concentration of naphthalene at the air-solid naphthalene interface 1x10-Skmol/m³ Recall: Nu = 0.664 Re.5 Pr0.33 (a) Develop an equation for Shi for laminar flow over a flat plate by using Chilton – Colburn analogy (b) Determine the average mass transfer coefficient over the flat plate. (c) Determine the rate of loss of naphthalene from the surface per unit width.

A stream of air at 100 kPa pressure and 300 K is flowing on the top surface of a thin flat sheet of solid naphthalene of length 0.2 m with a velocity of 20 m/sec. The other data are: Mass diffusivity of naphthalene vapor in air = 6×10-6 m²/s Kinematic viscosity of air = 1.5x10-5 m²/s Concentration of naphthalene at the air-solid naphthalene interface 1x10-Skmol/m³ Recall: Nu = 0.664 Re.5 Pr0.33 (a) Develop an equation for Shi for laminar flow over a flat plate by using Chilton – Colburn analogy (b) Determine the average mass transfer coefficient over the flat plate. (c) Determine the rate of loss of naphthalene from the surface per unit width.

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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A stream of air at 100 kPa pressure and 300 K is flowing on the top surface of a thin flat sheet of solid naphthalene of length 0.2 m with a velocity of 20 m/sec. The other data are: Mass diffusivity of naphthalene vapor in air = 6×10-6 m²/s Kinematic viscosity of air = 1.5x10-5 m²/s Concentration of naphthalene at the air-solid naphthalene interface = 1x10-Skmol/m³ Recall: %3D Nu = 0.664 Re5 Pr0.33 (a) Develop an equation for Shi for laminar flow over a flat plate by using Chilton – Colburn analogy (b) Determine the average mass transfer coefficient over the flat plate. (c) Determine the rate of loss of naphthalene from the surface per unit width.
Transcribed Image Text:A stream of air at 100 kPa pressure and 300 K is flowing on the top surface of a thin flat sheet of solid naphthalene of length 0.2 m with a velocity of 20 m/sec. The other data are: Mass diffusivity of naphthalene vapor in air = 6×10-6 m²/s Kinematic viscosity of air = 1.5x10-5 m²/s Concentration of naphthalene at the air-solid naphthalene interface = 1x10-Skmol/m³ Recall: %3D Nu = 0.664 Re5 Pr0.33 (a) Develop an equation for Shi for laminar flow over a flat plate by using Chilton – Colburn analogy (b) Determine the average mass transfer coefficient over the flat plate. (c) Determine the rate of loss of naphthalene from the surface per unit width.
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